Chemistry Semester 1 Review

Front

How many electrons does Silicon (Si) contain?

Back

Silicon (Si) contains 14 electrons.

Front

What is the element with the smallest ionization energy in Period 6?

Back

The element with the smallest ionization energy in Period 6 is Cesium (Cs).

Front

Which atom has the largest atomic radius in Group 18?

Back

The atom with the largest atomic radius in Group 18 is Radon (Rn).

Front

How can you test for radon in your home?

Back

You can test for radon in your home by using a radon test kit.

Front

What is the noble gas shorthand electron configuration for Sulfur (S)?

Back

The noble gas shorthand electron configuration for Sulfur is [Ne] 3s² 3p⁴.

Front

Define ionization energy.

Back

Ionization energy is the energy required to remove an electron from an atom in its gaseous state.

Front

What is atomic radius?

Back

Atomic radius is the distance from the nucleus of an atom to the outermost shell of electrons.

Front

What is the significance of noble gases in the periodic table?

Back

Noble gases are significant because they have full valence electron shells, making them very stable and unreactive.

Front

Explain the trend of ionization energy across a period.

Back

Ionization energy generally increases across a period from left to right due to increasing nuclear charge.

Front

What is the trend of atomic radius down a group?

Back

The atomic radius generally increases down a group due to the addition of electron shells.