Understanding the Atom ch 7 Study Guide

According to the modern atomic theory, electrons are usually found ____ the nucleus.

Who proposed this model of atoms?

Which scientists proposed this model for atoms?

The nucleus of an atom consists of ____.

How does alpha decay differ from beta decay?

All matter is made up of particles called ____.

If two atoms have the same protons but different neutrons they will have same ____.

How did the results of the gold foil experiment change the model of the atom?

The three basic components of an atom are ___.

Which scientist developed this model for atoms?

Every atom of the same element has the same atomic _____.

In an atom, electrons ______.

Which of the following found that atoms have a nucleus?

Atoms of the same element containing different numbers of neutrons are called ____.

Of the three main subatomic particles, the ____ has the least mass

What did Rutherford expect to happen when he bombarded gold foil with alpha particles?

Thomson's experiments lead to the discovery of the _____

When Rutherford did his metal foil experiment, he was surprised most of the alpha particles __.

How did Thomson demonstrate the existence of electrons?

Based on his experiment, Rutherford concluded that atoms were ____.

A single proton has which electrical charge?

Which of the following ids NOT a developer of an atomic model?

The particles that make up the atom are ____.

The idea of an atom was first proposed by ____

An element can be identified by the number of ____ in its nucleus.

For an atom to be neutral, the number of protons must equal the number of _____.