Question

CAL CHEMISTRY
STUDY QUESTIONS
Name three of fundamental particles which make an atom.
How many electrons and neutrons are present in lithium ?
Give the electronic configuration of chlorine atom.
Write a note on Bohr's atomic model.
Distinguish between a proton and a photon.
What are the various postulates of Bohr's model of an atom
Define (1) Atomic number and (in) Mass number.
Define the terms () wavelength and (ii) frequency
Write the postulates of quantum theory of radiation.
atomis model failed to justify the​

Answer 1

Answer:

three fundamental particles which make an atoms are electrons protons and neutrons.

electronic configuration of chlorine is 2, 8, 7.

bohar atomic model state that.

1.atoms have the centre called nucleus.

2. electrons revolve only in the fixed circular orbit with fixed velocity and with fixed energy.

protons are positive charge.

the total number of protons present in the nucleus is called atomic number .

the sum of protons and neutrons is known as mass number