elements

Question 1

metals always loose what?

non-metals gain?

Answer 1

Electrons

Question 2

atoms have a ______ charge

Answer 2

neutral

Question 3

when atoms loose electrons they become what?

Answer 3

ions
cation
they have a positive charge
metals

Question 4

atoms become what when they gain electrons?

Answer 4

ions
anion
negative charge
non-metals

Question 5

what is the periodic table

Answer 5

a chart of elements arranged according to their physical and chemical properties

Question 6

three major groups on the periodic table

Answer 6

metals
metalloids
non-metals

Question 7

atomic number

Answer 7

number of protons in the nucleus in each atom

the nature of the atom is determined by the number of protons

Question 8

atomic mass

Answer 8

the mass of an average atom

mass is #p+#n+#e

Question 9

ion charge

Answer 9

an electric charge that forms an atom when it gains or looses an electron

Question 10

what kinds of ions do elements on the left side of the periodic table form

Answer 10

positive

Question 11

what kinds of ions do elements on the right side of the periodic table form

Answer 11

negative

Question 12

4 families

Answer 12

alkaline metals
alkaline earth metals
halogens
noble gases

Question 13

3 rules for writing a chemical symbol

Answer 13

first letter must be a capital
symbol is made of either one or two letter
second letter, if present, must be lowercase

Question 14

seven horizontal rows called?

Answer 14

periods

Question 15

18 vertical columns called?

Answer 15

families

Question 16

halogens

Answer 16

non metallic elements that are strongly reactive

Question 17

noble gases

Answer 17

non metallic elements that are very unreactive

Question 18

alkai metals

Answer 18

metallic elements that are strongly reactive

Question 19

alkaline earth metals

Answer 19

metallic elements that are reactive

Question 20

the outer shell of an atom is called the

Answer 20

valence shell

Question 21

the electrons occupying the valence shell are called the

Answer 21

valence electrons

Question 22

there are _ energy shells

Answer 22

4

Question 23

ionic compound

Answer 23

the combination of a metal and a non-metal element

Question 24

metal is always named ______ with its full name

non metals are always named _______ and has the suffix ______

Answer 24

first
second
“ide”