2. Atoms & Elements

If the boron nitride molecule, BN, were to form, what would its structure most likely resemble?

Why do atoms have no overall electric charge even though most of their subatomic particles are charged?

Oxygen has an atomic number of 8. What can you conclude from this fact?

How many electrons does a neutral potassium (K) atom have?

The ozone layer absorbs most of the incoming _____ radiation.

What determines the reactivity of an atom?

Which of the following is the number of neutrons in the most common isotope of hydrogen?

Which of the following is the number of protons in a gold (Au) atom?

Which particles are counted to determine the mass number of an atom?

Which element has 6 protons in its nucleus?

The atomic number of oxygen is 8. What is the mass number of an oxygen atom with 7 neutrons?

Which of the following best describes a molecule?

What is the atomic number for carbon?

An atom of carbon-12 is being considered. How many protons does this atom have?

Which element has more protons and electrons: mercury (Hg) or tin (Sn)?