Why isotopes have same chemical properties?

Important Questions on Atomic Structure and Chemical Bonding

MEDIUM

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 6

What are valence electrons? How valence electrons help in predicting the nature of an element?

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 7

Name the scientist who discovered electron.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 7

Name the scientist who discovered proton.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 7

Name the scientist who discovered neutron.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 7

Name the scientist who discovered nucleus.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 8

What is the atomic number and mass number of $\mathrm{X}$ in ${}_{17}{}^{35}\mathrm{X}$?

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 8

How many protons, neutrons and electrons are there in element ${}_{17}{}^{35}\mathrm{X}$.

EASY

9th ICSE

IMPORTANT

TOGETHER WITH CHEMISTRY>Chapter 4 - Atomic Structure and Chemical Bonding>PRACTICE QUESTIONS>Q 8

Give the electronic configuration of element $\mathrm{X}$ in ${}_{17}{}^{35}\mathrm{X}$.