Atoms, the Periodic Table, and Bonding

A(n) ___________ shows the number of valence electrons in an atom in pictorial fashion. 

• chemical bond
• electron dot diagram

Atoms tend to be stable and nonreactive if they have _________ valence electrons.

• 2

• 4

• 6

• 8

In the periodic table, the number of valence electrons in each element ___________ from left to right across each period.

• Increases

• Decreases

• Stays the same

The reactivity of a metal depends on how easily it LOSES its valence electrons.

• False

• True

• Never

• It depends

Tags

NGSS.MS-PS1-2

The number of ________________ in the atom of an element determines its chemical properties.

• Protons

• Valence Electrons

• Neutrons

• Atomic Number

Tags

NGSS.MS-PS1-1

A(n) ____________ shows the number of valence electrons in an atom by drawing a picture.

• Electron Dot Structure

• The nucleus

• Periodic Table

Tags

NGSS.MS-PS1-1

Atoms tend to be stable and nonreactive if they have SIX valence electrons. 

• True
• False

How many valence electrons for Hydrogen?

• 1

• 2

• 6

• 8

Tags

NGSS.MS-PS1-1

How many valence electrons for Aluminum?

• 5

• 13

• 3

• 8

What are valence electrons?

• They do not exist

• Total number of electrons in an atom

• Electrons in the nucleus

• Electrons on the outer most shell of an electron