chapter 2 and 3 review Flashcards
1
Q
What is the average atomic mass?
A
The average of the masses of naturally occurring isotopes of an element weighted according to their abundance
2
Q
What is the equation for atomic mass+
A
(the sum of) (isotope mass)(fractional abundance of isotopes
3
Q
What is a diatomic?
A
elements that are naturally found in 2’s
4
Q
What are the diatomics?
A
H2, O2, F2, Br2, I2, N2, Cl2
5
Q
What column is alkali metals?
A
1A
6
Q
What column is alkaline earth metals?
A
2A
7
Q
What column are halogens?
A
7A
8
Q
What column are noble gases?
A
8A
9
Q
Covalent bonds form…
A
When elements share electrons which occurs between 2 nonmetals
