2. Atoms & Elements

How many protons does a sodium atom have?

How do the atoms of different elements differ from one another?

Nitrogen has an atomic number of seven. How many electron shells does it likely have?

How many protons are present in a neutral atom of carbon?

What is the smallest particle of an element that still retains the properties of that element?

Which of the following statements does NOT describe the structure of an atom?

Which of the following determines the identity of an element?

Which term is defined as anything that takes up space and has mass?

Which of the following represents an atom of calcium?

How many protons are present in the nucleus of an aluminum (Al) atom?

Which of the following particles are found in the nucleus of an atom?

In mass spectrometry, which of the following best describes a molecular ion?

Why do atoms of elements typically have neutral charges?

Which of the following best describes the charge of an electron?

How many protons are in an atom of magnesium?