Question

1.name the physical quantity that has no unit and also explain why
2.state the number of protons and number of neutrons and valancy and the electronic configeration of the atom chlorine 35/17​

Answer 1

Answer:

1. Strain is a good example, because it is the ratio of original length to extended length, the units cancel and it is dimensionless. This is the correct term for 'having no units'.

2. number of protons is=17

number of neutron=18

valency is=1

E.C=2,8,7