Valence and trends review

Front

What is the valence of Nitrogen?

Back

Nitrogen has a valence of 3, meaning it can gain or share 3 electrons.

Front

How does atomic radius change across a period in the periodic table?

Back

The atomic radius decreases from left to right across a period due to increased nuclear charge attracting electrons more strongly.

Front

What is the electron configuration of Zinc?

Back

The electron configuration of Zinc is 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰.

Front

Which element has the largest atomic radius: Ar, He, Kr, or Rn?

Back

Rn (Radon) has the largest atomic radius among these elements.

Front

Which element has the smallest ionization energy: Rn, Cs, Os, or Tm?

Back

Cs (Cesium) has the smallest ionization energy among these elements.

Front

What is ionization energy?

Back

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

Front

What trend is observed in ionization energy as you move across a period?

Back

Ionization energy generally increases as you move from left to right across a period.

Front

What is the relationship between atomic size and ionization energy?

Back

As atomic size increases, ionization energy decreases because the outer electrons are further from the nucleus.

Front

What is the significance of valence electrons?

Back

Valence electrons determine an atom's chemical properties and its ability to bond with other atoms.

Front

How many valence electrons does Oxygen have?

Back

Oxygen has 6 valence electrons.