Chemistry terms

Question 1

what is a proton

Answer 1

a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron

Question 2

what is a neutron

Answer 2

a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

Question 3

what is an electron

Answer 3

a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.

Question 4

what are the diatomic elements

Answer 4

Hydrogen, nitrogen, oxygen, fluorine, chlorine, bromine and iodine.

Question 5

what is an isotope

Answer 5

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.