Periodic Table Review

Front

In which group can you find helium (He)?

Back

Noble gases are the group in the periodic table that includes helium (He). They are characterized by their lack of reactivity due to having a full valence shell.

Front

Which has a greater ionization energy, Ca or Kr?

Back

Krypton (Kr) has a greater ionization energy than Calcium (Ca) because ionization energy increases across a period and decreases down a group.

Front

As you move to the right across a period, electronegativity...

Back

Electronegativity increases as you move to the right across a period due to increasing nuclear charge.

Front

As the size of an atom increases, the energy required to remove an electron...

Back

The energy required to remove an electron decreases as the size of an atom increases because the outer electrons are further from the nucleus.

Front

As you move down a group, electronegativity...

Back

Electronegativity decreases as you move down a group due to increased distance between the nucleus and the valence electrons.

Front

What is the periodic trend for atomic radius?

Back

Atomic radius increases down a group and decreases across a period from left to right.

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 electronegativity?

Back

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

Front

What are alkali metals?

Back

Alkali metals are the elements found in Group 1 of the periodic table, characterized by having one electron in their outermost shell.

Front

What are halogens?

Back

Halogens are the elements in Group 17 of the periodic table, known for being highly reactive nonmetals.