Chem 4-6 Review

Indicate whether the statement is true or false. The nucleus is extremely dense.

• True

• False

Tags

NGSS.HS-PS1-8

Indicate whether the statement is true or false. The chemistry of the atom does NOT depend on the nature of the electrons.

• True

• False

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Indicate whether the statement is true or false. The periodic table shows all elements in order based on DECREASING atomic numbers.

• True

• False

Indicate whether the statement is true or false. Periods are the horizontal rows on the periodic table.

• True

• False

Indicate whether the statement is true or false. When combining elements, you can combine two cations together.

• True

• False

Identify the choice that best completes the statement or answers the question. Negatively charged subatomic particles.

• a. protons

• b. electrons

• c. neutrons

• d. isotopes

Tags

NGSS.MS-PS2-3

Identify the choice that best completes the statement or answers the question. The nucleus of an atom is

• a. negatively charged and has a low density

• b. negatively charged and has a high density

• c. positively charged and has a low density

• d. positively charged and has a high density

Identify the choice that best completes the statement or answers the question. The sum of the protons and neutrons in an atom equals the

• a. atomic number

• b. number of electrons

• c. mass number

• d. none of these

Identify the choice that best completes the statement or answers the question. An ion with a 3+ charge contains 23 electrons. Which ion is it?

• a. Fe3+

• b. Ca3+

• c. V3+

• d. Sc3+

Tags

NGSS.HS-PS1-1

Identify the choice that best completes the statement or answers the question. In the equation E = hv, h is called

• a. height

• b. Planck’s Constant

• c. Avagadro’s Number

• d. None of these

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3