Quiz 1

Question 1

Physical Change

Answer 1

Change in physical state:

-solid, liquid, gas

Question 2

Chemical Change

Answer 2

A reaction, changes identity

-reactants make products

Question 3

Element

Answer 3

A substance made up of only one type of atom

Question 4

H

Answer 4

Hydrogen

Question 5

Na

Answer 5

Sodium

Question 6

Sc

Answer 6

Scandium

Question 7

Br

Answer 7

Bromine

Question 8

He

Answer 8

Helium

Question 9

Mg

Answer 9

Magnesium

Question 10

Ti

Answer 10

Titanium

Question 11

Sr

Answer 11

Strontium

Question 12

Li

Answer 12

Lithium

Question 13

Al

Answer 13

Aluminum

Question 14

V

Answer 14

Vandium

Question 15

Ag

Answer 15

Silver

Question 16

Be

Answer 16

Berrylium

Question 17

Si

Answer 17

Silicon

Question 18

Cr

Answer 18

Chromium

Question 19

Sn

Answer 19

Tin

Question 20

B

Answer 20

Boron

Question 21

P

Answer 21

Phosphorus

Question 22

Mn

Answer 22

Manganese

Question 23

I

Answer 23

Iodine

Question 24

C

Answer 24

Carbon

Question 25

S

Answer 25

Sulfer

Question 26

Fe

Answer 26

Iron

Question 27

Cs

Answer 27

Caesium

Question 28

N

Answer 28

Nitrogen

Question 29

Cl

Answer 29

Chlorine

Question 30

Co

Answer 30

Cobalt

Question 31

Ba

Answer 31

Barium

Question 32

O

Answer 32

Oxygen

Question 33

Ar

Answer 33

Argon

Question 34

Ni

Answer 34

Nickel

Question 35

Au

Answer 35

Gold

Question 36

F

Answer 36

Fluorine

Question 37

K

Answer 37

Potassium

Question 38

Cu

Answer 38

Copper

Question 39

Hg

Answer 39

Mercury

Question 40

Ne

Answer 40

Neon

Question 41

Ca

Answer 41

Calcium

Question 42

Zn

Answer 42

Zinc

Question 43

Pb

Answer 43

Lead

Question 44

Metals

Answer 44

Conductive properties

-Make up most of periodic table

Question 45

Metalloids

Answer 45

B, Si, Ge, As, Sb, Te, At

-Semi conductive

Question 46

Non-metals

Answer 46

Non-conductive

• Include noble gases (last row)
• Helium downward

Question 47

Compounds

Answer 47

A pure substance made up of more than one type of atom held together by chemical bonds

Question 48

Atomic Theory

Answer 48

Central Dogma of Chemistry

• all matter is composed of atoms
• atoms of one element differ from the atoms of all other elements
• Chemical compounds consist of atoms combined in ratios
• Reactions change the way the atoms are combined in compounds, Atoms do not change!

Question 49

Particle Charges

Answer 49

Positive and Negative Attract

-like charges repel

Question 50

Atoms composed of subatomic particles

Answer 50

• protons
• neutrons
• electrons

Question 51

Atomic Number

Answer 51

Z

• Bottom number on periodic table
• # of protons

Question 52

Number of Electrons

Answer 52

Equals # of protons if neutrally charged

Question 53

Mass Number

Answer 53

A

• Atomic Mass Units (AMU)
• # of protons + neutrons in nucleus

Question 54

Isotopes

Answer 54

Atom of a given element can have different mass numbers

Question 55

Ions

Answer 55

Electrically charged particle formed by the loss or gain of electrons

Question 56

Cation

Answer 56

Positively charged ion

• formed by loss of electrons
• non metals mainly