Question 1

increasing atomic mass

Accepted Answer

arrangement of elements on first periodic table

Question 2

increasing atomic number

Accepted Answer

arrangement of elements on current periodic table

Question 3

Noble Gases

Accepted Answer

Name of Group 18 elements

Question 4

Alkali Earth Metals

Accepted Answer

Name of Group 2 elements

Question 5

Halogens

Accepted Answer

Name of Group 17 elements

Question 6

Alkali Metals

Accepted Answer

Name of Group 1 elements

Question 7

electron

Accepted Answer

Subatomic particle with negative charge

Question 8

proton

Accepted Answer

Subatomic particle with positive charge

Question 9

neutron

Accepted Answer

Subatomic particle with no charge

Question 10

proton & neutron

Accepted Answer

Subatomic particles responsible for atomic mass

Question 11

electron

Accepted Answer

Subatomic particle responsible for volume and chemical properties

Question 12

positive

Accepted Answer

Charge of nucleus only

Question 13

neutral (none)

Accepted Answer

Charge of entire atom

Question 14

atomic number

Accepted Answer

Number of protons only

Question 15

atomic mass

Accepted Answer

Sum of protons and neutrons

Question 16

family / group

Accepted Answer

Vertical columns on periodic table (18)

Question 17

period

Accepted Answer

Horizontal rows on periodic table (7)

Question 18

metals

Accepted Answer

Are usually solids, shiny, ductile, malleable and good conductors of heat and electricity

Question 19

metalloids / semiconductors

Accepted Answer

has properties of both metals and nonmetals (7 of them)

Question 20

non-metals

Accepted Answer

Are usually gases, dull, brittle, and poor conductors of heat and electricity

Question 21

F

Accepted Answer

Element with most electronegativity

Question 22

Fr

Accepted Answer

Element with largest atomic size

Question 23

atom

Accepted Answer

Smallest unit of an element that keeps its chemical properties

Question 24

Mendeleev

Accepted Answer

He created the first periodic table

Question 25

nucleus

Accepted Answer

location of protons and neutrons

Question 26

H

Accepted Answer

Only element with NO neutrons

Question 27

different element

Accepted Answer

Change in number of protons

Question 28

ion

Accepted Answer

Change in number of electrons ; charged atom

Question 29

isotope

Accepted Answer

Change in number of neutrons and atomic mass

Question 30

electron cloud

Accepted Answer

the location of electrons

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