Atomic structure

Question 1

Atom

Answer 1

A particle that cannot be broken down into smaller particles

Question 2

Molecule

Answer 2

Made up of atoms (the same or different) that are chemically bonded

Question 3

Proton

Answer 3

+1, mass 1, found in the nucleus

Question 4

Neutron

Answer 4

0, mass 1, found in nucleus

Question 5

Electron

Answer 5

-1, mass 1/1836 and found in the shells

Question 6

Atomic number

Answer 6

number of protons in an atom

Question 7

Mass number

Answer 7

Number of protons and neutrons in an atom

Question 8

Isotopes

Answer 8

Atoms of the same element (same number of protons) but with a diferent number of neutrons

Question 9

Relative atomic mass (Ar)

Answer 9

(abundance x mass 1) + (abundance x mass 2) /100