8th Grade Review

Electron has a _____________charge.

How many electrons fit in the first shell?

• 8

• 2

• 18

• 24

Where are the protons in an atom?

• In the nuclues

• In the shell

• by the electrons

• in the first orbital

Each electron has a _________________ electrical charge

• Positive

• Negative

• Neutral

• Shocking

Each neutron has an electrically_________________charge

• Positive

• Negative

• Neutral

• Shocking

The nucleus of an atom contains protons and_______________

• Electrons

• Haptons

• Neutrons

• Wontons

An element is determined by the number of ___________________ (also known as its atomic number).

• Neutrons

• Electrons

• Protons

• Wontons

The modern periodic table is organized by _________________ atomic number.

• Increasing

• Decreasing

• Reducing

• Developing

A ___________________ is a combination of two or more atoms that are held together by covalent bonds.

• Moles

• Ions

• Molecules

• Megatrons

What is the number of protons that the element in this image contain?

• 14
• 7
• 15
• 18