1A: Atoms and Particles

Question 1

Define anion

Answer 1

Ion with overall negative charge because they gain electrons for full outer shell

Question 2

Define atom

Answer 2

Basic building blocks of matter with subatomic particles

Question 3

Define atomic number

Answer 3

Number of protons in an atom

Question 4

Define cation

Answer 4

Ion will overall positive charge because they lose electrons for full outer shell

Question 5

Define compound

Answer 5

Made up of more than one type of atom (methane, water)

Question 6

Define electron

Answer 6

Negatively charged subatomic particle that surround the nucleus in orbitals

Question 7

Define ion

Answer 7

Formed when atom loses/gains electrons

Question 8

Define molecule

Answer 8

Two or more atoms chemically bonded together (water, nitrogen, calcium oxide)

Question 9

Define mass number

Answer 9

Total number of protons and neutrons in an atom

Question 10

Define isotope

Answer 10

Atoms of same element with same number of protons, but different number of neutrons (therefore changing the relative atomic mass)

Question 11

What is electrostatic attraction?

Answer 11

The attraction between positively charged and negatively charged particles. It is how electrons are bound to the atom, because they are attracted to positively charged protons in the nucleus

Question 12

Define element

Answer 12

Pure substance made from single type of atom (monoatomic, molecules, lattices)