Quiz #2

Question 1

What is the mass of a proton?

Answer 1

1 AMU or 1.66 x 10^-27

Question 2

What is the mass of an electron?

Answer 2

Mass is so small it is (mostly) irrelevant

Question 3

What is the mass of a neutron?

Answer 3

1 AMU or 1.66 x 10^-27

Question 4

Atomic number (Z)

Answer 4

Number of protons.

Is the identifying number of the atom

Question 5

Cation

Answer 5

positive

Question 6

Anion

Answer 6

negative

Question 7

Compounds

Answer 7

More than one kind of atom in a fixed ratio by mass

Question 8

Molecules

Answer 8

groups of atoms chemically bonded together into a discrete unit by covalent bonds.
Net neutral charge.

Question 9

Ionic compounds

Answer 9

contain both positive and negatively charged ions with no identifiable units.
Attracted by charges and are not molecules

Question 10

Can a substance be both a molecule and an element?

Answer 10

Yes; oxygen for example

Question 11

Physical change

Answer 11

No change in the chemical makeup.

Ex. melting ice

Question 12

Chemical change

Answer 12

Always makes a chemically different substance

Question 13

Intensive physical property

Answer 13

Integral to the material, regardless of amount

Question 14

Extensive physical property

Answer 14

Depends on sample size.

Ex: volume.

Question 15

Substances

Answer 15

Pure materials that can’t be physically seperated into simpler components.

Question 16

Mixtures

Answer 16

2 or more pure substances.

Can be physically separated

Question 17

What is the only element that does not contain a neutron?

Answer 17

Hydrogen

Question 18

Mass Number (A)

Answer 18

Atomic Number plus number of neutrons.

Basically, protons plus neutrons

Question 19

Elements will have the same amount of protons/neutrons/electrons?

Answer 19

Protons and electrons

Question 20

Left side of table

Answer 20

Metals:
Ductile
malleable
conductors.
give away electrons

Question 21

Right side of table

Answer 21

Non-metals:
do not conduct.
tend to be brittle
can be liquids/solids/gases

Question 22

Along the ladder

Answer 22

Metalloids:
intermediates
shiny
less malleable
conduct but not well

Question 23

Aluminum

Answer 23

silvery white metal.
found in antiperspirant.
Avoid in dialysis pt.
Does not clear body well.

Question 24

Barium

Answer 24

GI studies.

Toxic, but excreted easily

Question 25

Bromium

Answer 25

One of two naturally occurring elements

Question 26

Calcium

Answer 26

Neurotransmitters. | Stabilize cardiac muscle in torsades prior to Mag administration

Question 27

Carbon

Answer 27

Great building block in chemistry

Question 28

Chloride

Answer 28

means green. Clorox cleaners. Mostly toxic

Question 29

Chromium

Answer 29

Found in stainless implants.

Question 30

Copper

Answer 30

great conductor

Question 31

Flourine

Answer 31

Sodium flouride for teeth strengthening

Question 32

Helium

Answer 32

MRI coolant

Question 33

Hydrogen

Answer 33

most common atom in the universe

Question 34

Iodine

Answer 34

will block thyroid storm

Question 35

Iron (Fe)

Answer 35

found in each Hgb molecule. Moves O2

Question 36

Lithium

Answer 36

Tricks CNS into thinkinh it is Na rushing in which slows down the CNS

Question 37

Magnesium

Answer 37

Cardiac conduction and effects Potassium levels

Question 38

Nitrogen

Answer 38

80% of air

Question 39

Oxygen

Answer 39

Vital to ATP synthesis.

Question 40

Sodium

Answer 40

Muscle contractions. CNS stability. Water balance

Question 41

Another name for ionic compounds

Answer 41

Salts

Question 42

How are ionic compounds named?

Answer 42

Positive first, | Negative second

Question 43

Larger and smaller number of ions named how?

Answer 43

Ate is larger Ite it smaller. Because the shark Ate the little fish (ite)