Periodic Table Trends

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

Which element has 2 valence electrons?

Back

Magnesium (Mg) has 2 valence electrons.

Front

What happens to atomic size as you move down a group in the periodic table?

Back

Atomic size increases as you move down a group due to the addition of energy levels.

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons.

Front

Which element has the highest electronegativity in the periodic table?

Back

Fluorine (F) has the highest electronegativity.

Front

Describe the trend of atomic radii across a period in the periodic table.

Back

Atomic radii decrease from left to right across a period due to increased nuclear charge.

Front

Describe the trend of atomic radii down a group in the periodic table.

Back

Atomic radii increase from top to bottom in a group due to the addition of energy levels.

Front

What are alkali metals?

Back

Alkali metals are the elements in Group 1 of the periodic table, known for being highly reactive.

Front

What are halogens?

Back

Halogens are the elements in Group 17 of the periodic table, known for their reactivity and tendency to form salts.

Front

What are noble gases?

Back

Noble gases are the elements in Group 18 of the periodic table, known for their lack of reactivity due to having a full valence shell.