Chemistry 112 (Vocab) - chp 4

Question 1

Atoms with the same number of protons but different number of neutrons

Answer 1

Isotopes

Question 2

Subatomic particles with no charge

Answer 2

Neutrons

Question 3

The smallest particle of an element that retains its identity in a chemical reaction

Answer 3

Atom

Question 4

negatively charged subatomic particles

Answer 4

Electrons

Question 5

the number of protons in the nucleus of an element

Answer 5

Atomic number

Question 6

defined as 1/2 the mass of a
carbon - 12 atom.

Answer 6

Atomic mass unit

Question 7

centeral core of an atom, that contains most of atoms mass.

Answer 7

Nucleus

Question 8

An arrangement of elements according to similarities in their properties

Answer 8

Periodic table

Question 9

Positively charged subatomic particles

Answer 9

Protons

Question 10

Average weight mass of the atom is in the element

Answer 10

Atomic mass

Question 11

A glowing beam that travered from the cathode to the anode.

Answer 11

Cathode rays

Question 12

all elements composed have atoms

atoms of same erement are identical

atoms of one element are different from those of another element atoms with different evements can physically

mix together or chemically combine in simple - whole # ratios for compounds

Chemical reactions occur when atoms are seperated, joined or rearranged

Answer 12

Daltons atomic theory

Question 13

Total number of protons and neutrons in an atom

Answer 13

Mass number

Question 14

Horizontal row on the periodic table

Answer 14

Period

Question 15

He believed that atoms were indivisible and indestructible

Answer 15

Democritus

Question 16

Mass number-atomic numbet

Answer 16

Number of neutrons calculations

Question 17

(AMU x %) + (AMU x %) = ?

Answer 17

Atomic mass calculation

Question 18

Vertical column of elements in the periodic table

Answer 18

Group