2. Atoms & Elements

Which type of electric charge is carried by protons in an atom?

Which element is the primary constituent of most stars?

Which of the following describes a particle that contains 36 electrons?

Electrons are the negatively charged particles of atoms. Where are they located?

Which statement about the relative potential energy of electrons in an atom is correct?

How many protons are present in a neutral atom of copper (Cu)?

Which property determines the identity of an atom?

Which parts of the atom move around the nucleus?

Which of the following best describes the difference between a molecule and an atom?

Electrons have what type of charge?

Which of the following does NOT accurately describe the forces that exist within an atom?

Which component in Uranus's atmosphere is primarily responsible for its blue tint?

Which subatomic particle's number determines the distinctive properties and identity of an element?

Which of the following is the smallest unit of an element that still retains the chemical properties of that element?

How many protons are present in an atom of gallium (Ga)?