10. Periodic Properties of the Elements

Which of the following best describes valence electrons and explains their importance in chemistry?

How many valence electrons are present in a neutral atom of boron?

Which of the following is the correct number of valence electrons in a neutral cadmium (Cd) atom?

Carbon has six protons. How many valence electrons does carbon have?

An atom of element X has 17 protons. How many electrons are present in its valence shell?

How many valence electrons does lithium (Li) have available for bonding?

How many valence electrons does calcium (Ca) have?

How many valence electrons does francium (Fr) have?

Which of the following compounds has a total of 10 valence electrons?

Which part of the atom is responsible for forming chemical bonds?

Which of the following represents the valence electron configuration for a neon (Ne) atom?

How many s electrons are present in a neutral atom of phosphorus (atomic number 15)?

Which of the following atoms has five valence electrons?

Which of the following represents the valence electron configuration for a sodium (Na) atom?

How many valence electrons does helium (He) have?