Unit 2 TEST Review

Which is/are TRUE about the element whose neutral atom has the following Bohr model?

• The element is calcium.

• All the choices are correct.

• It has 2 valence electrons.

• It can be found in Period 4 of the Periodic Table.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is TRUE about the models of the atom?

• As scientists discovered more about the atoms, the model of the atom got more complex.

• The model of the atom proposed by J. J. Thomson has more features than the model proposed by Niels Bohr.

• As scientists discovered more about the atoms, the model of the atom got more simple.

• The Rutherford model of the atom is more simple than the model proposed by John Dalton.

Which of the following has the BIGGEST atomic radius?

• O

• Ne

• F

• S

Tags

NGSS.HS-PS1-1

Which of the following elements has the HIGHEST number of valence electrons in their neutral atoms?

• Argon (Ar)

• Magnesium (Mg)

• Lithium (Li)

• Oxygen (O)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following has the LOWEST ionization energy?

• Si

• Ge

• C

• Sn

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The color that has the longest wavelength is

• red

• orange

• blue

• violet

Tags

NGSS.HS-PS4-1

All light colors travel at the same speed.

• True

• False

Tags

NGSS.HS-PS4-1

The shortest waves have the lowest energy.

• True

• False

Tags

NGSS.HS-PS4-1

The Halogen with the SMALLEST atomic radius.

• Helium

• Fluorine

• Astatine

• Oxygen

Tags

NGSS.HS-PS1-1

The Alkali Metal with the LARGEST atomic radius.

• Radium

• Beryllium

• Francium

• Lithium

Tags

NGSS.HS-PS1-1