chem test

Question 1

what did democritus suggest

Answer 1

the idea of an undivisble atom

Question 2

what did dalton suggest

Answer 2

matter is composed of indivisble atoms.
chemical reactions are a rearrangement of atoms
compounds are a combination of atoms.

Question 3

JJ thompson

Answer 3

discovered electrons plum pudding model

Question 4

goldstein

Answer 4

atoms have a positive chargech

Question 5

chadwick

Answer 5

descovered neutrons

Question 6

rutherford

Answer 6

said atoms are mostly empty space through gold foil expiriment

Question 7

de broglie

Answer 7

suggested that electrons behave like waves

Question 8

Bohr

Answer 8

electrons are in fixed orbits and energy levels around the nucleus

Question 9

heisenberg

Answer 9

created the heisenberg uncertainty principle we can’y know position and momentum of an electron at the same time

Question 10

schrodinger

Answer 10

developed the quantam mechanical model of the atom electrons go in orbitals not orbits built on de broglie and heisenbergs ideas.

Question 11

how many e- can s fit

Answer 11

2

Question 12

p

Answer 12

6

Question 13

d

Answer 13

10

Question 14

f

Answer 14

14

Question 15

how do wavelength and frequency affect eachother

Answer 15

when wavelength gets shorter frequency gets higher (inversly proportional)

Question 16

chromium and copper

Answer 16

move 4s electrons to 3d