Periodic Table Flashcards
1
Q
a group contains element with
A
similar properties
2
Q
An element contains atoms with the same
A
number of protons
3
Q
Elements are arranged by
A
increasing number of protons
4
Q
group 1
A
alkali metals
5
Q
group 7
A
halogens
6
Q
group 0
A
noble gases
7
Q
Periods are going
A
sideways
8
Q
groups are going
A
down
9
Q
Same period os =
A
same electron shells
10
Q
same group =
A
same number of electrons in it outer shell
11
Q
Bottom number of an element
A
Atomic number (protons)
12
Q
Top number of an element
A
Atomic mass
