Electrons and the Periodic Table

Question 1

A line spectrum is produced when an electron moves from one energy level to...

Accepted Answer

a lower energy level.

Question 2

How many electrons in an atom with the electron configuration of 1s22s22p63s1?

Accepted Answer

11

Question 3

What color of light has the shortest wavelength?

Accepted Answer

violet

Question 4

An atom of an element has 6 valence electrons. This means it will...

Accepted Answer

GAIN two electrons to form an ANION with a -2 charge.

Question 5

Which element is represented by the following electron configuration? [Ar] 4s1

Accepted Answer

K

Question 6

Which of the following would be associated with the greatest energy emitted?

Accepted Answer

n=5 to n=1

Question 7

This causes a weakening of the attraction between an electron and nucleus.

Accepted Answer

shielding effect

Question 8

Which element has a smaller ionization energy, xenon (#54) or barium (#56)?

Accepted Answer

barium

Question 9

How many valence electrons does nitrogen have?

Accepted Answer

5

Question 10

How many valence electrons are in an atom with the electron configuration: 1s2 2s2 2p6 3s2 3p3?

Accepted Answer

5

Question 11

Which period 3 element has the largest atomic radius?

Accepted Answer

sodium

Question 12

The lanthanides & actinides make up this "block" of the periodic table.

Accepted Answer

f

Question 13

Ionization energy is

Accepted Answer

the energy required to remove an electron.

Question 14

How many orbitals (orientations) does a p sublevel have?

Accepted Answer

3

Question 15

It requires the least amount of energy to remove the first outermost electron from...

Accepted Answer

strontium

Question 16

Each period in the periodic table corresponds to

Accepted Answer

an energy level

Question 17

A spherical shaped electron cloud is...

Accepted Answer

an s orbital.

Question 18

The letter d in the symbol 3d5 indicates the

Accepted Answer

orbital shape

Question 19

Which of the following electron configurations represents a relatively inactive element?

Accepted Answer

1s2 2s2 2p6

Question 20

The second ionization energy is always ___ the first ionization energy.

Accepted Answer

greater than

Question 21

How does atomic radius change as you go down a group on the periodic table?

Accepted Answer

It increases.

Question 22

Which element has a larger electronegativity, silicon (#14)or chlorine (#17)?

Accepted Answer

chlorine

Question 23

Which of the following families contains elements forming -1 ions?

Accepted Answer

halogens

Question 24

What number should be replaced by the question mark for Nitrogen: 1s22s22p?

Accepted Answer

3

Question 25

Elements that are characterized by the filling of the s orbital are...

Accepted Answer

groups 1A and 2A

Question 26

As wavelength ___, frequency ___.

Accepted Answer

increases, decreases

Electrons and the Periodic Table

Questions 26

Electrons and the Periodic Table

Questions 26