Valence Electrons & Electron Dot Diagrams

Electrons are ________ particles in an atom.

• positive

• negative

Tags

NGSS.MS-PS1-1

Valence electrons are in the _________ shell.

• innermost

• outermost

• nucleus

Tags

NGSS.MS-PS1-1

How many valence electrons are in this atom?

• 2

• 5

• 8

Tags

NGSS.MS-PS1-1

The atomic number is how many ______________ an atom has.

• electrons

• neutrons

• protons

To find the number of electrons, _______ the atomic number from the atomic mass.

• add

• subtract

How many electrons does this element have?

• 23

• 24

• 23.956

Tags

NGSS.MS-PS1-1

How many valence electrons would there be if we made a dot diagram?

• 2

• 6

• 8

Tags

NGSS.MS-PS1-1

How many electrons does this element have?

• 3

• 3.941

• 4

Tags

NGSS.MS-PS1-1

How many valence electrons would there be if we made a dot diagram?

• 2

• 5

• 7

Tags

NGSS.MS-PS1-1

The number of valence electrons in each atom help determine the ________ properties of that element.

• chemical

• rational