Fall Final Practice Quizizz

Which of the following could describe a subatomic particle found at location Y in the diagram?

• It is an electron with a neutral charge.

• It is a proton with no charge.

• It is an electron with a negative charge.

• It is a proton with a positive charge.

Tags

NGSS.HS-PS1-1

The number of protons in carbon (C) —

• can be determined by adding the atomic number to the atomic mass.

• is equal to the atomic number.

• can be determined by subtracting the atomic number from the atomic mass.

• is equal to the atomic mass.

Which of the following best describes the caffeine compound?

• The compound is covalent and has the formula C8H10N2O2.

• The compound is covalent and has the formula C4H5N2O.

• The compound is ionic and has the formula C8H10N4O2.

• The compound is ionic and has the formula C4H5N2O.

Which list consists of elements that have the most similar chemical properties?

• A. K, Ca, and Ga

• B. Mg, Ca, and Ba

• C. Mg, Al, and Si

• D. K, Al, and Ni

Tags

NGSS.HS-PS1-1

Which statement best compares the atomic radius of a potassium atom and the atomic radius of a calcium atom?

• A. The radius of the potassium atom is larger because of its smaller nuclear charge.

• B. The radius of the potassium atom is larger because of its larger nuclear charge.

• C. The radius of the potassium atom is smaller because of its larger nuclear charge.

• D. The radius of the potassium atom is smaller because of its smaller nuclear charge.

Which atom is represented by this notation?

• A. C

• B. N

• C. B

• D. Be

Tags

NGSS.HS-PS1-1

What is the IUPAC name for the compound FeS?

• Iron(III) sulfate

• Iron(III) sulfide

• Iron(II) sulfate

• Iron(II) sulfide

What is the chemical formula for sodium sulfate?

• NaSO₄

• NaSO₃

• Na₂SO₄

• Na₂SO₃

Given the electronegativities H (2.20) and F (3.98), what type of bond will likely form?

• Covalent

• Ionic

• Metallic

• Hydrogen

Tags

NGSS.HS-PS1-1

What is the electronegativity of Cl?

• 3.16

• 2.20

• 0.93

• 1.31

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2