EL4 Flashcards
1
Q
periodic table
A
a list of elements in order of atomic (proton) number that groups elements together according to their common properties
2
Q
as protons get closer in the nucleus
A
they repel with increasing repulsion
however, nuclear force is stronger
3
Q
neutrons role in nucleus
A
do not have charge but do have magnetic properties
act as buffer between protons
4
Q
periodicity
A
the occurrence of periodic patterns
5
Q
melting boiling points suddenly drop across a period
A
as elements go from metals to non-metals (which have weak intermolecular forces)
6
Q
group (number)
A
number of electrons in outer shell
7
Q
period (number)
A
shell number being filled
8
Q
s-block elements
A
group 1 and 2
outermost s sub shell being filled
9
Q
p-block orbitals
A
groups 3-8(0)
outermost p sub shell being filled
