The Periodic Table Flashcards
page 13
1
Q
what does the group in which an element belongs correspond to?
A
the number of electrons it has in its outer shell. (group 2 elements have 2 electrons in their outer shell electron and so on..)
2
Q
Group 1 elements are called..?
A
alkali metals
3
Q
group 7 elements are called..?
A
halogens
4
Q
group 0 elements are called..?
A
noble gases
5
Q
what are the rows along the periodic table called?
A
periods
6
Q
what happens to the properties of elements as you go along a period?
A
they change (sometimes quite dramatically)
7
Q
why do elements in a group have similar properties?
A
they have the same number of electrons in their outer shell.
8
Q
what is the atomic number equal to?
A
the number of electrons each atom has.
