Valence Electrons
Mass Number
Lewis Dot Structure
Electron Configuration
Average Atomic Number
100

How many valence electrons does Hydrogen have?

One valence electron.

100

What is a mass number?

The number of protons and neutrons

100

In the Lewis Dot Structure, the valance electrons are shown as....?

Dots

100

What is Lithium's Electron configuration?

1s22s1

100

What is Hydrogen's Average atomic mass?

1.008

200

How many valence electrons does oxygen have?

Six valence electrons.

200

What element has 82 protons?

Lead

200

How many valence electrons can go into the first orbital?

2

200

What is the electron configuration for Neon?

1s22s22p6

200

What is the atomic mass number for oxygen?

15.999

300

How many valence electrons does fluorine have?

Seven valence electrons.

300

How many neutrons does 16-Oxygen have?

8

300

How many valence electrons are shown in the Lewis Dot Structure for Nitrogen?

5

300

What is the electron configuration for Sulfur?

1s22s22p63s23p4

300

What is the atomic mass number for calcium?

40.078

400

What is the definition for Valence Electron?

An electron that is found in outer most shell of an atom and that determines the atoms chemical properties.

400

An atom has 10 protons, 18 neutrons, and 10 electrons, what’s the mass number?

28

400

How many valence electrons are shown in the Lewis Dot Structure for Chlorine?

7

400

What is the electron configuration for Argon?

1s22s22p63s23p6

400

What is the atomic mass number for silver?

107.868

500

What group has the highest valence electrons?

Group 18 

500

An element has a mass number of 13 and 6 protons, how many neutrons are there?

7

500

How many valence electrons are shown in the Lewis Dot Structure for Barium?

2

500

What is the electron configuration for Gallium?

1s22s22p63s23p63d104s24p1

500

What is the atomic mass number for lead?

207.2