Energy Levels, Electrons, and Covalent Bonding

What type of charge does an electron have?

• positive

• no charge

• negative

Which of the following participates in chemical bonding?

• electrons

• neutrons

• protons

Electrons with more energy are found ____________

• Closer to the nucleus

• Further from the nucleus

What is the term for the areas of space around the nucleus in which electrons move?

• energy levels

• distance levels

• electron levels

What do we call the electrons furthest from the nucleus?

• far electrons

• outer electrons

• outside electrons

• valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the most stable number of valence electrons?

• 5

• 6

• 7

• 8

Tags

NGSS.HS-PS1-1

which group of elements have 8 valence electrons

• The noble gasses

• the Carbon group

• The alkaline metals

Oxygen is a group 16 element. How many valence electrons does it have

• 4

• 5

• 6

• 7

True or false: Atoms gain, lose or share electrons to reach 8 valence electrons and become chemically stable.

• True

• False

Most energy levels can hold 8 electrons. However, the energy level closest to the nucleus can hold only ______________ electrons

• 1

• 2

• 3

• 4