Question

#1: Which element has the same number of energy levels as bromine (Br) and the same number of valence electrons as barium (Ba)?

A. potassium (K)

B,. beryllium (Be)

c. cadmium (Cd)

D. calcium (Ca)

***not too sure on this one... is it D. calcium (Ca) ??

Answer 1

#2: Which element has six energy levels?

A. rubidium (Rb)

B. cesium (Cs)

C. potassium (K)

D. sodium (Na)


***my answer: B. cesium (Cs)

is that right??

Answer 2

#3: Which of the following elements has the most properties in common with beryllium (Be)?

A. calcium (Ca)

B. osmium (Os)

C. lithium (Li)

D. chromium (Cr)


***my answer: A. calcium (Ca)

is that right??

Answer 3

1D looks good

Answer 4

kk what about 2 and 3?

Answer 5

2 looks good

Answer 6

kk and 3?

Answer 7

so does 3, nice job

Answer 8

okay, thanks! :)