Explaining the period table

Question 1

what is the electron

Answer 1

sub-atomic particles that carry a negative charge

Question 2

what is the proton

Answer 2

sub-atomic particle that carries a positive charge

Question 3

what is a neutron

Answer 3

sub-atomic particle that carries no charge (is neutral)

Question 4

what is the electrical charge of protons

Answer 4

+

Question 5

what is the electrical charge of electrons

Answer 5

-

Question 6

what is electrical change of neutrons

Answer 6

0

Question 7

what is does it mean when a atom is neutral and why

Answer 7

it has no charge and this happened because there is an equal number of protons and electrons

Question 8

what does it mean for an element to be classified as list a

Answer 8

the element symbol is the first letter of the name

Question 9

what does it mean for an element to be classified as list b

Answer 9

the element symbol is the symbol two letters of the name

Question 10

what does it mean for an element to be classified as list c

Answer 10

the element symbol is the first letter and some other letter in the name

Question 11

what does it mean for an element to classified as group d

Answer 11

the element symbol is based and another name usually Latin

Question 12

what is the atomic number

Answer 12

is the number located above the element symbol
the number of protons and electrons

Question 13

what is the atomic mass

Answer 13

found below the element symbol
the mass of an atom in atomic mass units (amu)

Question 14

what is the mass number

Answer 14

same as the atomic mass but rounded to the nearest to the nearest number
the total number of protons plus the total number of neutron in the nucleus

Question 15

what is does 2 8 8 18 stand for in the Bor-Rutherford diagram

Answer 15

it stands for the max amount of electrons per shell

Question 15

what is does 2 8 8 18 stand for in the Bor-Rutherford diagram

Answer 15

it stands for the max amount of electrons per shell

Question 16

what is the group names in the period table

Answer 16

group 1- alkaline metals
group 2- alkaline earth metals
groups 3 to 12- transition metal
group 17- halogens
groups 18- Nobel gases

Question 17

what are isotopes atoms

Answer 17

atoms with the same number of protons and electrons but different numbers of neutrons. they are commonly written with new atomic mass after the element

Question 18

what changes from atom to atom in isotopes atom

Answer 18

the number of neutrons

Question 19

what does a isotopes atom

Answer 19

element - number ex carbon-13

Question 20

how do you find the amount of neutrons

Answer 20

number of protons - mass number = neutrons

Question 21

how many electrons are the first shell

Answer 21

2

Question 22

how many electrons are in the second shell

Answer 22

8

Question 23

how many electrons are third shells

Answer 23

8

Question 24

how many electrons are in fourth shell

Answer 24

18

Question 25

how to find out the number of valence electron

Answer 25

in groups 1 and 2, 1 and 2 will be the valence electron in groups 13-18, would be the number of the group its in subtracting 10

Question 26

what is a molecule

Answer 26

a molecule is atoms joined together

Question 27

what is a molecular element

Answer 27

a molecule consisting of atoms of the same element

Question 28

what is a another word for molecular element

Answer 28

diatomic element

Question 29

what is an example of a molecular element

Answer 29

H2

Question 30

what is molecular compound

Answer 30

molecules that consist of 2 or more different elements

Question 31

what is an example of a molecular compound

Answer 31

H2O

Question 32

what is a subscript

Answer 32

a subscript is a number written in the lower left corner beside the element this indicates the number of atoms

Question 33

what does it mean if a subscript is outside of a bracket

Answer 33

it multiplies all the elemenrs inside brackets

Question 34

what is a coefficient

Answer 34

the number written in front of chemical symbols indicates the number of molecules it multiplies the number of atoms in each element of the formula

Question 35

how do atoms achieve stability

Answer 35

they will either lose or gain electrons

Question 36

how to tell if you need to gain electrons to get a stable octet

Answer 36

if the amount of electrons in the outermost shell is closer to to the limited amount (2-8-8-18) in the shell

Question 37

how to tell if you need to lose electrons to get a stable octet

Answer 37

if the amount of electrons in the outermost shell is farther from the limited amount in the shell

Question 38

what is a cation

Answer 38

a postively charged ion and needed to lose electrons

Question 39

what is an anion

Answer 39

a positively charged ion that needs to gain electrons

Question 40

what is a ion

Answer 40

either has a positive or negative charge and is caused by the uneven amount of protons

Question 41

what is a ionic bond

Answer 41

metal + non metal

Question 42

what is a covalent bond

Answer 42

non- metal + non- metal

Question 43

metallic bond

Answer 43

metal + metal