10. Periodic Properties of the Elements

Which of the following represents the number of valence electrons in an atom of aluminum (Al)?

How many valence electrons are present in the outermost shell of a neutral atom with 15 electrons?

How many valence electrons does a bromine (Br) atom have?

How many valence electrons does a boron (B) atom have?

How many valence electrons does a sodium (Na) atom have?

How many additional electrons does a sulfur atom need to achieve a stable (octet) electron configuration?

Which of the following is found in the outermost shell (energy level) of an atom?

How many valence electrons does aluminum (Al) have available for bonding?

Which of the following is a likely predictor of how many covalent bonds an atom can form?

In order to obtain a stable outer shell of electrons, carbon forms four:

How many electrons does a Mn atom have in its 3d subshell?

What is the total number of outer (valence) electrons present in a molecule of carbon dioxide (CO_2)?

For a nitrogen atom (atomic number 7), how many electrons are present in its outermost shell?

Why are only valence electrons, and not core electrons, typically involved in chemical bonding?

How many valence electrons does a fluorine atom have?