The Periodic Table

Look at the tile above, how many protons are in oxygen?

• 8.999

• 8

• 16

• 15.999

Tags

NGSS.MS-PS1-1

Look at the tile above, how many electrons are in oxygen?

• 8.999

• 8

• 16

• 15.999

Tags

NGSS.MS-PS1-1

Look at the tile above, how many neutrons are in oxygen?

• 7.999

• 8

• 16

• 15.999

Tags

NGSS.MS-PS1-1

Look at the tile above, what is the atomic mass of oxygen?

• 7.999

• 8

• 16

• 15.999

_______ and _______ are located in the nucleus of the atom, while _______ exist in orbits outside of the nucleus. (SC.8.P.8.5)

• Protons; neutrons; electrons

• Electrons; protons; neutrons

• Neutrons; electrons; protons

• Protons; electrons; neutrons

Which of the following is NOT made up of atoms? (SC.8.P.8.5)

• A cell

• A gas

• Heat

• A solid

Tags

NGSS.MS-PS1-1

The modern periodic table is organized in order of increasing ____________. (SC.8.P.8.6)

• Atomic mass

• Atomic number

• Mass number

• Atomic mass unit

The elements in a period of the periodic table ____________. (SC.8.P.8.6)

• Have the same number of electrons.

• Have the same number of protons.

• Decrease in atomic mass from left to right.

• Increase in atomic number from left to right.

In the periodic table, how are elements in the same group related to each other? (SC.8.P.8.6)

• They have the same atomic mass.

• They have similar properties.

• They have the same atomic number.

• They have very different properties.

Which of the following elements is a metalloid? (SC.8.P.8.6)

• Sulfur (S)

• Scandium (Sc)

• Silicon (Si)

• Seaborgium (Sg)