Question

1 ) why is an atom neutral inspite of the presence of charged particles in it ?
2) Describe Bohr's model of the atom .How did Neil's
Bohr explain the stability of atom ?
3) Define Isotopes and Isobar using a suitable example
4) a) define valency of an element .what velency will be shown by an element having atomic number 14?
b) what is the relation between the velency of an element and the no.of Valence electrons in its atom? explain with example
answer the question please it's urgent​

Answer 1

Answer:

★ Electron

★ Proton

★ Neutron

1. Electrons are present outside the nucleus.

Protons are present in the nucleus.

Neutrons are present in the nucleus of the atom.

2. They are negatively charged.

They are positively charged.

They are neutral in charge.

3. Mass of electrons is negligible.

The mass of a proton is approximately 2000 times as the mass of an electron.

The mass of neutron is nearly equal to the mass of a proton.

hope it help u

Answer 2

Answer:

1. Atom is neutral because it has equal no. of protons and electrons.

4. Tendency to loss, share and gain electrons is called valency

Valency of 14 no. Atom is 4( it will share electron)