Unit I

Question 1

Hydrogen (1)

Answer 1

H

Question 2

Helium (2)

Answer 2

He

Question 3

Lithium (3)

Answer 3

Li

Question 4

Beryllium (4)

Answer 4

Be

Question 5

Boron (5)

Answer 5

B

Question 6

Carbon (6)

Answer 6

C

Question 7

Nitrogen (7)

Answer 7

N

Question 8

Oxygen (8)

Answer 8

O

Question 9

Fluorine (9)

Answer 9

F

Question 10

Neon (10)

Answer 10

Ne

Question 11

Sodium (11)

Answer 11

Na

Question 12

Magnesium (12)

Answer 12

Mg

Question 13

Aluminum (13)

Answer 13

Al

Question 14

Silicon (14)

Answer 14

Si

Question 15

Phosphorus (15)

Answer 15

P

Question 16

Sulfur (16)

Answer 16

S

Question 17

Chlorine (17)

Answer 17

Cl

Question 18

Argon (18)

Answer 18

Ar

Question 19

Potassium (19)

Answer 19

K

Question 20

Calcium (20)

Answer 20

Ca

Question 21

Iron (26)

Answer 21

Fe

Question 22

Copper (29)

Answer 22

Cu

Question 23

Zinc (30)

Answer 23

Zn

Question 24

Manganese (25)

Answer 24

Mn

Question 25

Iodine (53)

Answer 25

I

Question 26

Name the six biologically important trace elements.

Answer 26

1. Iron
2. Copper
3. Zinc
4. Manganese
5. Iodine
6. Fluorine

Question 27

weight

Answer 27

a measure of the gravitational pull on an object

Question 28

mass

Answer 28

a measure of the quantity of the material it contains (mass does not change)

Question 29

What are the metric base units?

Answer 29

meter (m), liter (L), gram (g), second (s), Celsius (°C)

Question 30

What are the International Standard (SI) base units?

Answer 30

meter (m), cubic meter (m3), kilogram (g), second (s), Kelvin (K)

Question 31

tera (T)

Answer 31

1,000,000,000,000
10E12
1Ts = 1 x 10E12 s
1 s = 1 x 10E-12 Ts

Question 32

giga (G)

Answer 32

1,000,000,000
10E9
1 Gm = 1 x 10E9 m
1 m = 1 x 10E-9 Gm

Question 33

mega (M)

Answer 33

1,000,000
10E6
1 Mg = 1 x 10E6 g
1 g = 1 x 10E-6 Mg

Question 34

kilo (k)

Answer 34

1,000
10E3
1 km = 1 x 10E3 m
1 m = 1 x 10E-3 km

Question 35

deci (d)

Answer 35

0.1
10E-1
1 dL = 1 x 10E-1 L
1L = 10 dL

Question 36

centi (c)

Answer 36

0.01
10E-2
1 cm = 1 x 10E-2 m
1 m = 100 cm

Question 37

milli (m)

Answer 37

0.001
10E-3
1 ms = 1 x 10E-3 s
1 s = 1 x 10E3 ms

Question 38

micro (u)

Answer 38

0.000 001
10E-6
1 mcg (ug) = 1 x 10E-6 g
1 g = 1 x 10E6 mcg

Question 39

nano (n)

Answer 39

0.000 000 001
10E-9
1 nm = 1 x 10E-9 m
1 m = 1 x 10E9 nm

Question 40

pico (p)

Answer 40

0.000 000 000 001
10E-12
1 ps = 1 x 10E-12 s
1 s = 1 x 10E12 ps