Physics

Question 1

Atoms

Answer 1

the smallest particle of a chemical element that can exist

Question 2

Nucleus

Answer 2

the central and most important part of an object, movement, or group, forming the basis for its activity and growth

Question 3

Atomic number

Answer 3

the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table

Question 4

Mass number

Answer 4

the total number of protons and neutrons in a nucleus.

Question 5

Proton

Answer 5

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

Question 6

Neutron

Answer 6

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

Question 7

Electron

Answer 7

a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids