Periodic Trends

Front

What is the definition of electronegativity?

Back

Electronegativity is how good an atom is at attracting electrons.

Front

What are the properties of Calcium?

Back

Calcium is a metal, has low electronegativity, and has 2 valence electrons.

Front

Which group of elements includes the most active elements?

Back

The halogens.

Front

Which elements have similar properties: Barium and Calcium, Sodium and Magnesium, Nickel and Copper, or Lithium and Helium?

Back

Barium and Calcium.

Front

What is the atomic radius trend in Group 18?

Back

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

Front

What is the general trend of electronegativity across a period?

Back

Electronegativity increases across a period from left to right.

Front

What is the general trend of atomic radius down a group?

Back

Atomic radius increases down a group.

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

What is the significance of the periodic table's groups?

Back

Elements in the same group have similar chemical properties due to having the same number of valence electrons.

Front

What is the difference between metals and nonmetals in terms of electronegativity?

Back

Metals generally have low electronegativity, while nonmetals have high electronegativity.