Unit 1 quiz 2

Question 1

Ionic Bond

Answer 1

metal and non metal
(arrows)

Question 2

Covalent/ molecular

Answer 2

2 non metals
(circles)

Question 3

electrolyte

Answer 3

a compound that dissolves in water producing a solution that conducts electricity

Question 4

atomic radius (periodic trend)

Answer 4

• decrease across a period
• increases down a group

Question 5

Ionic Radius (periodic trend)

Answer 5

• decreases across a period *trend restarts when elements switch from cation to anion
• Increases down a group

Question 6

Ionization Energy (periodic trend)

Answer 6

-Increases across a period
- decreases down a group

Question 7

Electron Affinity (periodic trend)

Answer 7

• increases across a period
  -decreases down a period

Question 8

Ionzation energy

Answer 8

the quantity energy required to remove an electron from an atom or ion in the gaseous state

Question 9

Electron affinity

Answer 9

the energy that occurs when an electron is added to a neutral atom in the gas state

Question 10

electronegativity

Answer 10

a measure of an atom’s ability to attract shared electrons to itself.

Question 11

why does Mg have a larger atomic radius than S

Answer 11

this is because Sulfur has more protons and therefore have a stronger connection, pulling the electrons in tighter than mg

Question 12

why does Na have a larger ionization energy than Cs

Answer 12

this is because Cs has more energy levels so its outermost electron is more easily removed

Question 13

Ionic Compound properties

Answer 13

• hard and brittle
• high melting point
  -dissolves in water
  -conducts electricity

Question 14

molecular compound properties

Answer 14

-soft solids, liquid or gas
- has odor
- low melting point
does not conduct electricity