10th grade chemistry help?

Posted on 2014-12-18 07:34:00 in Chemistry by PAUL

Multiple Choice

1)  The element whose electron configuration is 1s2 2s2 2p6 4s2 3d10 4p2 is:

Na

Si

Al

Ga

None of the listed answers are correct

Ge



2)  Which one of the following elements has five valence electrons?

A- n

B- c

C- f

D- b

E- none of these

F- all of these



3)  Electrons in outermost (highest) occupied principal energy level

A- orbital electrons

B- valence electrons

C- None of the listed answers are correct

D- excited electrons

E- ionization electrons

F- core electrons



4) Which neutral atom has six 3d electrons?



Rh

Co

Fe

None of the listed answers are correct

H

Ru



5)  What is the maximum number of electrons that can be in the third principal energy level?



32

2

None of the listed answers are correct

All of the listed answers are correct

18

8



6)  How many electrons can be in a 3d sublevel?



None of the listed answers are correct

5

2

4

10

0



7) Which of the following is the smallest atom?



Ge

None of the listed answers are correct

O

K

Si



8)  The number of waves that pass a given point per unit of time:



wavelength

None of the listed answers are correct

orbital

ground state

excited state

frequency



9)  Tiny packet of energy:



frequency

electron

None of the listed answers are correct

wavelength

orbital

photon



10)  Which of the following groups of atoms have the same outermost electron configurations but with different n values?

Ca, Ge, Sr, In

S, Cl, Ar, K

All

N, O, F, Ne

O, S, Se, Te

None

---

Answer Comment

No Answers Posted Yet.