Chapter 4 Review

The nucleus has this type of charge:

Atoms of different elements are chemically different as a result of differing amounts of

amu is defined as ___ the mass of a carbon-12 atom

This person was the first to propose the idea of the atom.

This person developed the plum pudding model of the atom

This particle determines the identity of an element

most of the atom is simply

I can find the mass number of an isotope on the periodic table.

The nucleus of the atom is very dense.

What is the atomic number for silver?

Chemical behavior of isotopes is the same.

He was surprised when alpha particles had major deflections upon traveling through gold foil

What instrument was used to discover the electron.

This is where I find most of the mass of the atom

If I want to know how many protons an atom has, I look this up on the periodic table:

This person was the first to PROVE the existence of the atom.

Isotopes have different

This person that that the atom was a solid sphere with no particle smaller than the atom.

Because atoms are electrically neutral,

mass number

This scientist used cathode ray tubes in his discovery of the electron

Atoms are electrically ____.

How many neutrons does Oxygen - 17 have?

This is the particle that makes the nucleus positive

The mass of single proton is defined as how many amus?

The overall atom has this type of charge

All points of Dalton's Atomic Theory were correct.

How many protons does Oxygen - 17 have?

When an isotopes short hand notation is written, what number appears on the upper left

This particle has approximately the same mass as a proton

Isotopes have different numbers of

A _______ is the smallest part of an element that retains the properties of that element.

This person developed the nuclear model of the atom

What does "amu" stand for?

This person was the scientist behind the gold foil experiment

What is one part of Dalton's Theory is now proven to NOT be true?

This person thought that atoms were neutral:

The nucleus of the atom is very dense.

What instrument us used to see the atom?