Honors Chapter 4 Review Game

What is the atomic number for Cr-55?

Calculate average atomic mass from these isotopes: 62.93 amu (69.17%) and 64.93 amu (30.83%).

Why are relative masses of atoms used instead of grams?

Why do beta particles bend more toward an oppositely charged plate than alpha particles?

J.J. Thomson's experiments involved

The "base" unit for the relative mass of atoms is the

Which of the following was NOT part of Dalton's original theory? (CR = chemical reaction)

A cathode ray travels from

The decimal number for each element on the periodic chart

Which is NOT correct?

Most of the volume of an atom is

The ratio of neutrons to protons plays a role in determining the stability of a nucleus.

Which information would not be needed to calculate the average atomic mass of an element?

The two men most alike in their ideas about atoms were

Changing the number of which particle would change the identity of an element?

One revision of Dalton's theory was due to the fact that

Beta particles have

What is a reasonable estimate for the number of copper atoms in a penny-sized pure copper coin?

What is the mass number of silicon with 15 neutrons?

The charge of an electron is

A reaction that involves a change in an atom's nucleus is

The smallest particle of an element that retains the properties of that element is

When writing an element symbol with the mass number and the atomic number, the atomic number is

The atomic model resulting from Thomson's work was the

Which of these is the correct symbol for the isotope of aluminum with a mass number of 27?

Which type of radiation has the least mass?

A cathode ray

In the gold foil experiment, the expected results were that

Sir James Chadwick discovered the

The Greek philosopher who first proposed that matter was not infinitely divisible.

The process by which an unstable nucleus loses energy spontaneously is called

Isotopes of an element have different numbers of

If the atomic mass on the periodic chart for carbon is 12.011, which isotope is most abundant?

What of these is not part of alchemy?

The exact charge and mass of the electron was determined by

Atoms emit radiation because they are

Rutherford used _____ in his experimentation.

An instrument which can be used to determine the mass of individual atoms is the

What experimental results led to the conclusion that electrons were part of all matter?

The atomic number is

What consists of high energy electromagnetic radiation?

The charge of an anode is

The atomic number of an element is the number of

A cathode ray contains

John Dalton's ideas were more useful than ideas expressed prior to his because

In order for an atom to be electrically neutral, the

The mass number is

The mass number minus the atomic number gives the number of

In Rutherford's experiment, a particle bounced straight back because it

The subatomic particle responsible for the chemical behavior of an element is the

The particle equivalent to a helium-4 nucleus is

The mass of an electron is approximately

An instrument that makes atoms visible is a

The basis for the relative masses of atoms is

Isotopes of an element have different

What would be the missing particle in this nuclear equation?

In carbon-14, the 14 is the