Electrons and the Periodic Table Review

Question 1

Which of the following is a member of the noble gas family and in the sixth energy level?

Accepted Answer

Rn

Question 2

The smallest unit of light is called the...

Accepted Answer

photon.

Question 3

What entire group was missing from Mendleev's periodic table

Accepted Answer

the noble gases

Question 4

Which is correct regarding the relationship between the energy and frequency of radiation?

Accepted Answer

Higher frequency radiation has more energy.

Question 5

Which is the correct electron configuration for phosphorus?

Accepted Answer

1s22s22p63s23p3

Question 6

Groups or families are represented by...

Accepted Answer

columns

Question 7

Which equation would allow you to find the length of a wave in meters?

Accepted Answer

λ = c/ν

Question 8

__________________ decreases as you move across a period.

Accepted Answer

atomic radius

Question 9

How many d orbitals exist per energy level?

Accepted Answer

5

Question 10

Which is true of carbon?

Accepted Answer

it has two "p" electrons

Question 11

How many valence electrons do alkaline earth metals have in their outer shell?

Accepted Answer

2

Question 12

Arrange the following in order of increasing ionization energy.

Accepted Answer

Ba, Ca, Be

Question 13

Which is the most reactive metal?

Accepted Answer

Fr

Question 14

The periodic table arranges elements according to...

Accepted Answer

atomic number and similar properties

Question 15

What group is calcium in?

Accepted Answer

alkaline earth metals

Question 16

Electrons release light as they...

Accepted Answer

fall back down to their ground state.

Question 17

Which of the following is a metal?

Accepted Answer

Cd

Question 18

Atomic radius increases as you move down a group because...

Accepted Answer

energy levels increase

Question 19

Arrange the following elements in order of increasing electronegativity

Accepted Answer

Be, N, F

Question 20

An orbit describes the exact path of an object. An orbital describes...

Accepted Answer

the probability of finding an electron in a space

Questions 20