Chemistry Questions please help!!?

[Mathew B]

1) The modern periodic law states that properties of elements are functions of their

a) atomic numbers
b) atomic masses
c)electrons

2)The smallest particle of an element that maintains the properties of that element is

a)an atom
b)an electron
c)a proton

3)The distance between corresponding points of adjacent waves is the

a)frequency
b)amplitude
c)wavelength

4)The theory that describes the wave properties of electrons is

a)quantum theory
b)atomic theory
c)kinetic theory

5)The modern periodic table is based on the idea of

a)Canizzaro
b)Moseley
c)Dalton

6)The alkali metals are found in

a)period 1
b)group 1
c)period 7

please answer only if you are sure of the answer, thanks so much to everyone who helped

[Isabel D]

1 a
2 a
3 c
4 b (I think)
5 b
6 b