Duplicate of Physical Science Chapter 4 Review

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

Who modeled his atom after the plum pudding model?

Which subatomic particle has no charge but adds mass to the atom?

Whose model determined that an atom's positive charge is concentrated in the atom's center?

____ was the scientist credited with discovering the atomic nucleus

Dalton's atomic theory was accepted because

Isotopes differ from one another in what way

On the periodic table, the ___ number tells you the number of protons in an atom's nucleus.

An atom of Calcium [Ca] would have ____ energy levels in its electron cloud.

How many electrons can the first energy level hold?

An atom's protons and neutrons are concentrated in a dense, central region called the...

Thomson is responsible for discovering an atoms that an atom contains

Two different isotopes of an element have different

Which particles determine the element to which an atom belongs?

The number following the element symbol in an isotope tells you 

Who said atoms could be divided? 

An element's atomic number is equal to its number of

An atom's electrons are located in a region called the...

Which subatomic particle has a positive electrical charge?

If an atom has an atomic mass of 13 & atomic # of 6. How many neutrons does this atom have?

______ used the gold foil experiment and discovered a dense nucleus at the center of the atom. 

The number of energy levels filled in an atom is determined by

If a Boron atom has an atomic number of 5 and an atomic mass of 11, its neutron count is...

What is an atom's nucleus made of?

Which of these statements is NOT part of Dalton's atomic theory?

How many electrons can the second energy level hold?

The AMU of a single electron is...

Atoms that have no charge

____ was the ancient Greek philosopher who first proposed the idea of atom-like particles.

How many electrons can the third energy level hold?

Which number tells you the average atomic mass of all known isotopes of a given element?

According to the new model of the atom, electrons behave like

Found in the outermost energy level of an atom

Oxygen's atomic number is 8. This means that an oxygen atom has

What is the mass number of an element that has 19 p⁺, 19 e^-, and 20 n⁰?

What subatomic particle is used to identify an atom>?

Who said that atoms couldn't be subdivided? 

Who gave atoms their name?

Whose model determined that an atom's positive charge is concentrated in the atom?

In _______ atomic model, negative electrons orbit the positively charged nucleus.