Find the best tutors and institutes for Class 10 Tuition

Find Best Class 10 Tuition

Please select a Category.

Please select a Locality.

No matching category found.

No matching Locality found.

Outside India?

Search for topics

Class 10 Tuition Updates

Ask a Question

Post a Lesson

All

All

Lessons

Discussion

Lesson Posted on 22/12/2018 CBSE/Class 10/Science

Trend of Ionisation Potential in Periodic Table

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

IONISATION POTENTIAL:- The ionisation potential is the amount of energy required to remove a valence electron from the isolated gaseous atom. Factors affecting the ionisation potential:- 1) Atomic size:- Atomic size increases potential ionisation decreases. 2)Nuclear Charge:- Nuclear Charge increases... read more

IONISATION POTENTIAL:- The ionisation potential is the amount of energy required to remove a valence electron from the isolated gaseous atom.

Factors affecting the ionisation potential:-

1) Atomic size:- Atomic size increases potential ionisation decreases.

2)Nuclear Charge:- Nuclear Charge increases potential ionisation increases.

TREND OF IONISATION POTENTIAL IN PERIODIC TABLE:-

Related image

In the period:- In the period from left to right  ionisation potential increases because

1) Nuclear Charge increases from left to right in the period.

2)Atomic size decreases

3)Hence In the period from left to right energy required to remove the valence electrons from an atom increases.

In the group: -from top to bottom ionisation potential of elements decreases because-

1)atomic size goes on increases from top to bottom in the same group.

2)Hence attraction force between the nucleus and valence electron decreases.

3) Thus lesser energy is sufficient to remove the valence electrons from an atom.

 

read less
Comments
Dislike Bookmark

Lesson Posted on 21/12/2018 CBSE/Class 10/Science

Modern Periodic law and Periodic Table

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

Modern Periodic law:- The Modern Periodic law states that the properties of elements are periodic functions of their atomic number. # In Modern Periodic Table elements are arranged in increasing order of their atomic number. # There are seven periods (horizontal rows) and 18 groups(vertical columns)... read more

Image result for modern periodic table chart

Modern Periodic law:- The Modern Periodic law states that the properties of elements are periodic functions of their atomic number.

# In Modern Periodic Table elements are arranged in increasing order of their atomic number.

# There are seven periods (horizontal rows) and 18 groups(vertical columns) in the Modern Periodic Table.

#The 1st group elements are called alkali metals. Li,Na,K etc.

#the 2nd group elements are called Alkaline earth metals.ex:- Be, Ca, Mg etc.

#17th group elements are called Halogens.Ex:- F,Cl,Br etc.

#18th Group elements are called inert gases. Ex:-He, Ne, Ar

 

read less
Comments
Dislike Bookmark

Lesson Posted on 15/12/2018 CBSE/Class 10/Science

TREND OF ATOMIC SIZE IN PERIODIC TABLE

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

ATOMIC SIZE:- atomic radius(size) is defined as the distance between the nucleus of an atom and the outer most shell of an atom. TREND OF ATOMIC SIZE IN PERIODIC TABLE: A) In the period from left to right atomic size goes on decreases because of- 1) Nuclear charge increases from left to right. 2)... read more

ATOMIC SIZE:- atomic radius(size) is defined as the distance between the nucleus of an atom and the outer most shell of an atom.

TREND OF ATOMIC SIZE IN PERIODIC TABLE:

A) In the period from left to right atomic size goes on decreases because of-

1) Nuclear charge increases from left to right.

2) The number of shells will be the same.

Hence attraction force between nucleus and valence electrons increases, so atomic size decreases.

B) In the same group from top to bottom atomic size increases because-

1) The number of shells goes on increases from top to bottom.

2) Nuclear charge increases but due to the screening effect, its impact is less.

 

read less
Comments
Dislike Bookmark

Looking for Class 10 Tuition

Find best Class 10 Tuition in your locality on UrbanPro.

FIND NOW

Lesson Posted on 14/12/2018 CBSE/Class 10/Science

PERIODS & GROUPS IN PERIODIC TABLE

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

PERIODS:- In the periodic Table horizontal rows are called periods. In the modern Periodic Table, there are seven periods.GROUPS:- In the periodic Table vertical columns are called periods. In the modern Periodic Table, there are 18 groups. PERIOD INDICATES THE FOLLOWING THINGS(PROPERTIES):-1)The period... read more

PERIODS:- In the periodic Table horizontal rows are called periods. In the modern Periodic Table, there are seven periods.
GROUPS:- In the periodic Table vertical columns are called periods. In the modern Periodic Table, there are 18 groups.
PERIOD INDICATES THE FOLLOWING THINGS(PROPERTIES):-
1)The period number indicates the number of shells presents in an atom of an element which shows in that period.ex- Na, K are present in 3rd period means atoms of these elements have three shells.
2)In the period left to right atomic size goes on decreasing but ionisation potential, electronegativity goes on increasing.
GROUP INDICATES THE FOLLOWING THINGS(PROPERTIES):-
1) Electronic configuration of atoms of all the elements which are present in the same group is similar.
2) Hence the elements which are present in the same group have the same chemical properties.
3) The elements which are present in the same group have the same number of valence electrons and the same valency.
4) Group number indicates the valence electrons of an atom of an element which belongs to that group.
Ex:- Valence electrons of 1st group elements is 1 and Valence electrons of 17 group( 7A) elements are 7 and so on.

read less
Comments
Dislike Bookmark

Lesson Posted on 14/12/2018 CBSE/Class 10/Science

ALKALI METALS

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

ALKALI METALS:- In the periodic table, the 1st group elements are called alkali metals because their hydroxides ex; NaOH, KOH are soluble in water.PROPERTIES OF ALKALI METALS:-1) Except for Hydrogen, all other elements are metals. 2)Their valence electrons and valency of their atoms are 1.3) They form... read more

ALKALI METALS:- In the periodic table, the 1st group elements are called alkali metals because their hydroxides ex; NaOH, KOH are soluble in water.
PROPERTIES OF ALKALI METALS:-
1) Except for Hydrogen, all other elements are metals.
2)Their valence electrons and valency of their atoms are 1.
3) They form electro +ve ions highly by losing the electrons.
4)They are very reactive metals.
5)They are excellent conductors of heat and electricity.
6) They are soft metals, sodium & potassium can even cut by knife also.

read less
Comments
Dislike Bookmark

Lesson Posted on 14/12/2018 CBSE/Class 10/Science

ALKALINE EARTH METALS

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

ALKALINE EARTH METALS:- The 2nd group elements are called alkaline earth metals.PROPERTIES OF ALKALI METALS:-1) All of these elements are metals. (Be,Ca,Mg,Ba etc)2)Their valence electrons and valency of their atoms are 2.3) They form electro +ve ions by losing two electrons. ex;- Ca-2e →Ca++4)They... read more

ALKALINE EARTH METALS:- The 2nd group elements are called alkaline earth metals.
PROPERTIES OF ALKALI METALS:-
1) All of these elements are metals. (Be,Ca,Mg,Ba etc)
2)Their valence electrons and valency of their atoms are 2.
3) They form electro +ve ions by losing two electrons. ex;- Ca-2e →Ca++
4)They are very reactive metals.
5)They are good conductors of heat and electricity.
6) They are soft(not much hard) metals.

read less
Comments
Dislike Bookmark

Looking for Class 10 Tuition

Find best Class 10 Tuition in your locality on UrbanPro.

FIND NOW

Lesson Posted on 14/12/2018 CBSE/Class 10/Science

HALOGENS

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

HALOGENS:- 17TH Groups elements are called Halogens because halogen means salt producing, these elements produce the salts when they combine with metals.F, Cl, Br, I etc. belong to this group.PROPERTIES HALOGENS:-1) All Of these elements are non-metals. 2)Their valence electrons and valency of their... read more

HALOGENS:- 17TH Groups elements are called Halogens because halogen means salt producing, these elements produce the salts when they combine with metals.
F, Cl, Br, I etc. belong to this group.
PROPERTIES HALOGENS:-
1) All Of these elements are non-metals.
2)Their valence electrons and valency of their atoms are 7 and 1respectively.
3) They form highly electro -ve ions(anion) by gaining an electron.ex; F+e- →F‾
4) They are very reactive non-metals.
5) They are bad conductors of heat and electricity.
6) At normal(room) temperature F&Cl are in the gaseous state, Br is in a liquid state, Iodine is in solid state
7) They combine among themselves to form interhalogen compounds.
8) They combine with the metals to form ionic compounds.

read less
Comments
Dislike Bookmark

Lesson Posted on 14/12/2018 CBSE/Class 10/Science

INERT GASES(NOBLE GASES)

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

INERT GASES(NOBLE GASES):- The 18th group elements are called Inert gases or Noble gases. He, Ne, Ar, Kr, Xe belongs to this group. They are called inert gases because they are chemically inert normally they don't participate in any chemical reaction. It is due to their electronic configuration.Helium... read more

INERT GASES(NOBLE GASES):- The 18th group elements are called Inert gases or Noble gases. He, Ne, Ar, Kr, Xe belongs to this group.

They are called inert gases because they are chemically inert normally they don't participate in any chemical reaction. It is due to their electronic configuration.Helium has completed duplet(2 valence electrons),other elements have completed their octet(8 valence electrons).Hence their electronic configuration is stable.

SOME PROPERTIES OF INERT GASES(NOBLE GASES):-

1)Their valence electrons are eight except He has 2.

2)They have completed their octet except He which completed duplet.

3)all of them are gases at room temperature.

4) They are non-reactive.

5) These gases are rarely available but very useful, so they are Noble gases.

read less
Comments
Dislike Bookmark

Lesson Posted on 13/12/2018 CBSE/Class 10/Science

Electric Current

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

Electric current:- Electric current is defined as the rate of flow of charge per unit time. suppose if "Q" changes flow in time (t) then, current=total charge/total time I=Q/t The SI unit of current is "Ampere." The smaller units are Milli ampere and microampere. Reasons for electric current in... read more

Electric current:- Electric current is defined as the rate of flow of charge per unit time.

suppose if "Q" changes flow in time (t)

then,

current=total charge/total time

I=Q/t

The SI unit of current is "Ampere."

The smaller units are Milli ampere and microampere.

Reasons for electric current in the conductor:-

The metals are the excellent conductors of electricity because they have the number of free electrons.

When the potential difference is applied between the two ends of the metallic wire or rod, then electrons start to flow from the negative terminal to +ve terminal. But conventionally in the circuit diagram, it is mentioned that the direction of current is from +ve to -ve terminal.

read less
Comments
Dislike Bookmark

Looking for Class 10 Tuition

Find best Class 10 Tuition in your locality on UrbanPro.

FIND NOW

Lesson Posted on 13/12/2018 CBSE/Class 10/Science

SERIES CONNECTION OF REISTANCES

Ramakrishna Dhooli

I have 15 years of experience in 10th level and 6+ years of experience in 12th level.I have taught more...

SERIES CONNECTION OF REISTANCES:- When the given resistances are connected one after the other ie. one end of the one resisor is connected to the one end of the other resistor,then the connection is called series connection,or series combination. Result of series connection of resistors is total resistance... read more

SERIES CONNECTION OF REISTANCES:-

When the given resistances are connected one after the other ie. one end of the one resisor is connected to the one end of the other resistor,then the connection is called series connection,or series combination.

Result of series connection of resistors is total resistance of the circuit increses.

If R1 , R2 and R3 are connected in series and if their resultant resistance is Rs IS GIVEN BY THE FORMULAE

Rs=R1+R2+R3

read less
Comments
Dislike Bookmark

About UrbanPro

UrbanPro.com helps you to connect with the best Class 10 Tuition in India. Post Your Requirement today and get connected.

Overview

Questions 484

Lessons 68

Total Shares  

+ Follow 122,019 Followers

Top Contributors

Connect with Expert Tutors & Institutes for Science

x

Ask a Question

Please enter your Question

Please select a Tag

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 25 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 6.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more