Unit 1.5 Flashcards
1
Q
Vertical columns
A
groups on periodic table
2
Q
Horizontal rows
A
periods on periodic table
3
Q
Which column is the noble gases?
A
the furthest column to the right
4
Q
What are metalloids?
A
an element whose properties are in-between those of metals and nonmetals
5
Q
What do you get if the number of neutrons changes?
A
an isotope
6
Q
Orbital
A
3-D region around nucleus that indicates probable location of an electron
7
Q
Where does Ionization energy trend to?
A
top right
8
Q
Why does ionization energy increase as you move right across a period?
A
the atomic radius is smaller so electrons are closer to the nucleus making them harder to strip away
