Chapter 2/3

Question 1

Atomic Number

Answer 1

Number of Protons

Question 2

Atomic Mass

Answer 2

Number of Protons + Nuetrons

Question 3

Isotopes

Answer 3

Different forms of an element that have the same number of protons but a different number of neutrons (Different Mass Number)

Question 4

C-14

Answer 4

Unstable carbon

Question 5

Half-life

Answer 5

The amount of time for half of an element to die

Question 6

Vacancy

Answer 6

An atom’s shell has room for a not her electron

Question 7

Covalent bonds

Answer 7

Share bond to finish shell

Question 8

Ionic bonds

Answer 8

Taking an electron from another to finish shell

Question 9

Electronegativity

Answer 9

atom’s ability to pull electrons from another atom

Question 10

Ions

Answer 10

unequal protons and electrons

Question 11

Free Radicals

Answer 11

Single, unpaired electrons that are harmful to life

Question 12

Polar, hydrogen bonds, high heat capacity, is a solvent, cohesive and adhesive, capillary action, ice floats

Answer 12

Reasons water is special

Question 13

Hydrogen Bonds

Answer 13

Hold together water molecules

Question 14

High heat capacity

Answer 14

High specific heat

Question 15

Solvent

Answer 15

polar dissolves polar and vice versa

Question 16

Hydrophilic

Answer 16

water loving

Question 17

Hydrophobic

Answer 17

water hating

Question 18

Cohesive

Answer 18

water molecules are attracted to each other keeping the molecules together

Question 19

Adhesive

Answer 19

water molecules don’t go towards non-polar

Question 20

Acid

Answer 20

Below 7 on the pH scale

Question 21

Base

Answer 21

Above 7 on the pH scale

Question 22

Carbs, lipids, proteins, nucleic acid

Answer 22

Biomolecules

Question 23

Monosaccharide

Answer 23

Carbs’ monomer

Question 24

Fatty acid and glycerol

Answer 24

Lipids’ monomer

Question 25

Amino acid

Answer 25

Proteins’ monomer