Atoms

Question 1

Atoms

Answer 1

An atom itself is made up of three tiny kinds of particles called subatomic particles: protons, neutrons, and electrons

Question 2

Nucleus

Answer 2

The nucleus is an organelle found in eukaryotic cells. Inside its fully enclosed nuclear membrane, it contains the majority of the cell’s genetic material. This material is organized as DNA molecules, along with a variety of proteins, to form chromosomes.

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

Proton

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

Neutron

Answer 7

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 8

Electron

Answer 8

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