Question 1

list of all elements currently known (118)

Accepted Answer

periodic table

Question 2

basic unit of all matter

Accepted Answer

atom

Question 3

subatomic particle with positive charge

Accepted Answer

proton

Question 4

subatomic particle with no charge

Accepted Answer

neutron

Question 5

A subatomic particle that has a negative charge

Accepted Answer

electron

Question 6

the sum of protons and neutrons

Accepted Answer

atomic mass number

Question 7

the number of protons in the nucleus

Accepted Answer

atomic number

Question 8

a vertical column of elements in the periodic table

Accepted Answer

group/family

Question 9

A horizontal row of elements in the periodic table

Accepted Answer

period

Question 10

Number of groups/families on the periodic table

Accepted Answer

18

Question 11

Number of periods on the periodic table

Accepted Answer

7

Question 12

arrangement of elements on the CURRENT periodic table

Accepted Answer

increasing atomic number

Question 13

location of protons and neutrons

Accepted Answer

nucleus

Question 14

location of electrons

Accepted Answer

electron cloud

Question 15

change in the number of neutrons (and atomic mass)

Accepted Answer

isotope

Question 16

change in number of electrons

Accepted Answer

ion

Question 17

change in number of protons

Accepted Answer

different element

Question 18

created the first periodic table

Accepted Answer

Mendeleev

Question 19

name of d block elements

Accepted Answer

transition metals

Question 20

name f block elements

Accepted Answer

inner transition metals

Question 21

name of Group 17 elements

Accepted Answer

halogens

Question 22

name of Group 1 elements

Accepted Answer

Alkali Metals

Question 23

name of Group 2 elements

Accepted Answer

Alkali Earth metals

Question 24

name of Group 18 elements

Accepted Answer

Noble Gases

Question 25

Only element with zero neutrons ; does NOT belong in alkali metals

Accepted Answer

Hydrogen

Question 26

outermost electrons

Accepted Answer

valence electrons

Question 27

inner electrons

Accepted Answer

core electrons

Question 28

distance from nucleus to outermost electron shell

Accepted Answer

atomic size

Question 29

ability to attract electrons in a chemical bond

Accepted Answer

electronegativity

Question 30

energy needed to remove valence electrons

Accepted Answer

ionization energy

Question 31

layout of elements on the FIRST periodic table

Accepted Answer

increasing atomic mass

Question 32

most electronegative element / has highest ionization energy

Accepted Answer

Fluorine [F]

Question 33

has largest atomic size

Accepted Answer

Francium [Fr]

Question 34

elements that follow PT trends; are in Groups 1-2 ; 13 - 17

Accepted Answer

representative

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