ISOTOPES AND ISOBARS

Isotopes are having same number of _________number but different ___________number.

• Atomic, mass

• Mass, atomic

• Electron, proton

• neutron, proton

Cl-35 and Cl-37 are the pairs of ______________.

• Isobars

• Isotopes

• Isotones

• Isodiaphers

In neutral atom, number of electron will be equal to number of________.

• proton and neutron both

• neutron

• none of these

• proton

Number of neutron in aluminium will be ____ if mass number of Al is 27.

• 12

• 14

• 13

• 15

Tags

NGSS.MS-PS1-1

Atomic number denoted by the ___________.

• A

• M

• P

• Z

How many electrons, protons present in Magnesium ion respectively.

• 12,10

• 10,12

• 12,12

• 14,12

Tags

NGSS.MS-PS1-1

Number of neturons will be in Cl-35 and Cl-37 respectively.

• 17,18

• 18,20

• 20,18

• 18,18

Tags

NGSS.HS-PS1-8

Which of the following defines the Mass number of an atom?

• number of protons + number of electrons

• number of neutrons + number of electrons

• number of protons + number of neutrons

• number of electrons

The isotopes of neutral atoms of an element differ in

• Atomic number

• Mass number

• Number of electrons

• Chemical properties

protons and neutrons which are the main constituents of the nucleus are called

• Nucleons

• Electrons

• Nucleus

• Protons