Physical Science Chapter 3 Review

An ion that has more protons than electrons is called a(n) __________.

Carbon-14 is different from carbon-12 in that it has a different number of __________.

The earliest record of a particle theory of matter is from the __________.

Democritus suggested that matter

Ions that have a negative charge are called __________.

The law of electrostatic charges states that

The Bohr model suggests that electrons move

A positively or negatively charged atom is known as a(n) __________.

The unique number of protons in the atoms of an element is that element’s __________.

Experiments involving __________ led to the discovery of the nucleus.

Which of the following is not typically represented with whole numbers?

What is the currently accepted model of the atom?

With which of these statements would John Dalton have disagreed?

The region around a nucleus where electrons are likely to be found is a(n) __________.

Which did not lead Rutherford to believe that most of the atom’s mass and positive charges were packed in a small space?

Which of the following is not a reason that the Bohr model is still in widespread use today?

J. J. Thomson discovered the existence of the __________.

Atoms of the same element with differing numbers of neutrons are called __________.

Copper-63 and copper-65 can never have the same number of __________.

Rutherford’s gold foil experiments gave rise to which atomic model?

Who first proved that atoms were divisible when he saw evidence of charged particles existing in the atom?

In Rutherford’s experiments, a beam of __________ was directed at a piece of gold foil.

Which of the following is a weighted average?

Which of the following scientists suggested that cathode rays were made of negatively charged paricles?

What is J. J. Thomson’s atomic model called?

An anion has more __________ than __________.

Which of the following is not a way that an ion can be formed?

The __________ is about 1836x the mass of electron. The slightly more massive __________ is about 1838x the mass.

Quantum mechanics is a branch of physics that deals with __________.

Which of the following is not an appropriate biblical motivation for managing radiation exposure?

Potassium-39 and potassium-41 always have the same number of __________.