GS Ch 5 Quiz

In the notation below, 108 represents the atomic number and 47 represents the atomic mass of silver (Ag).

What is the name of the atomic model shown in the picture?

A cathode ray tube consists of a stream of electrons.

In a neutral atom, the protons always equal the neutrons.

Which element has 14 protons?

Which scientist developed the model of the atom shown?

What is the sum of the protons and neutrons in the nucleus of an atom called?

Greek philosophers thought that matter was composed of four elements: air, earth, fire, and water.

Which one has a charge of +1?

Which scientist described the nucleus in the middle of an atom using a gold-foil experiment?

What subatomic particles are located in the nucleus?

Isotopes are forms of an element that have the same number of protons but a different number of neutrons.

The vertical columns on the periodic table are called periods.

Which scientist described the existence of the neutron?

John Dalton used very precise scales to prove the Law of Conservation of Mass.

The negative electrode in the cathode ray or in a battery is called the cathode.

Which one is the negative subatomic particle?

A theory is an explanation for a broad set of observations that is based upon proven hypothesis.

Which of the following atomic models is shown in the picture?

Which one is the positive subatomic particle?

Atoms that have the same number of protons, but different numbers of neutrons are called...?

The box for an element from the periodic table is shown. Which is the atomic mass?

Which one is the neutral subatomic particle?

What is a representation of an object or system?

The gold foil experiment discovered the nucleus.

The box for an element from the periodic table is shown. Which is the atomic number?

Aristotle named atoms "atoms".

Which one(s) have a mass of 1 amu?

Which has a charge of 1-?