nucleus

Question 1

nucleus

Answer 1

made up of protons and neutrons

Question 2

proton

Answer 2

a subatomic particle with a positive charge

Question 3

neutron

Answer 3

subatomic particle with no charge

Question 4

electron

Answer 4

subatomic particle with negative charge

Question 5

orbital

Answer 5

high chance of electrons in an atom

Question 6

valence electron

Answer 6

electron that is located outermost shell of an atom

Question 7

periodic law

Answer 7

repeating chemical and physical properties of elements will change patterns with their atomic number

Question 8

period

Answer 8

horizontal

Question 9

group

Answer 9

vertical column

Question 10

group

Answer 10

vertical column

Question 11

ion

Answer 11

atom or group of atoms that has - or + electrons

Question 12

atomic number

Answer 12

number of protons in the nucleus

Question 13

mass number

Answer 13

sum of the # of protons and neutrons in the nucleus

Question 14

isotope

Answer 14

same number of protons, different neutrons

Question 15

atomic mass unit

Answer 15

a unit of mass that describes the mads of an atom or molecule

Question 16

average atomic mass

Answer 16

The average mass of an element’s naturally occurring isotopes, weighted by their abundance.

Question 17

semiconductor

Answer 17

conducts electric current better than an insulator

Question 18

alkali metal

Answer 18

one of the elements of group 1

Question 19

alkaline earth metal

Answer 19

group 2

Question 20

halogen

Answer 20

group 17

Question 21

mole

Answer 21

used to measure amount of substance

Question 22

avogrados constant

Answer 22

6.022 x 10^23

Question 23

molar mass

Answer 23

mass in grams of 1 mol

Question 24

conversion factor

Answer 24

two different units that are used to convert from one unit to another