Question

Science worksheet
1. The nucleus has _____charge.
2. The fundamental particle not present in a hydrogen atom is _____
3. Compare an electron, a proton and a neutron in respect of their mass and charge.
4. An atom contains 3 protons, 3 electrons, write it's electronic arrangement. Also write it's valence electrons and is it metal or non metal?
5. Name the fundamental particle whose relative charge is :
a. +1 b. -1 c. 0
6. What is neutron? State it's relative mass and charge.
7. How does an electron different from a neutron?
8. Write the electronic arrangement of an atom whose atomic number is 16. Also tell whether it is metal or non metal?
9. The electronic arrangement is 2,8,7
a. What is atomic number of the element?
b. Write it's valence electron and also is it metal or non metal.​

Answer 1

1. Protons

2. Neutron

Answer 2

Answer:

1. Chemical

2. The fundamental particle not present in the nucleus of a H atom is "NEUTRON".