Duplicate of Physical Science BJU Chapter 3

Potassium -39 and potassium -41 always have the same number of ___________.

Carbon -14 and Carbon -12 have differnt numbers of neutrons.

Most of an atom consits of filled space

___________believed that electrons move through spherical regions located a fixed distance from the nucleus.

_______________ first suggested that elements are made of atoms and that atoms of an element are alike

What is the currently accepted model of the atom?

Which of the following is NOT typically represented with whole number?

Quantum Mechanics deals with the behavior of matter and energy at the atomic and subatomic levels.

With which of these statements would John Dalton have disagreed?

An anion has more ____________ than ______

This subatomic particle is found in the nucleous and has no electrical charge

Democritus thought of the indivisible " atomos"

Aristotle first called particles atomos, from which we get our word atom.

The number of protons found in the nucleus of a given element.

Democritus suggested that matter

Ernetst Rutherford developed the Saturnian Model

This Subatomic particle has a charge of -1e

____________ discovered electrons using Crookes tubes

What is JJ Thomson's atomic model called?

The subatomic particel has a charge of +1e

John Dalton thought that atoms are indivisible and cannot be destroyed.

Which of the following is a weighted average?

Which of the following is NOT a reason that the Bohr model is still in widespread use today?

The Bohr Model suggests that electrons move

The quantum mechanical model is not the primary model used today by scientists.

The law of electrostatic charges states that

_____________ developed the nuclear model

JJ Thomson discovered the existence of the _____________.

Hantaro Nagaoka developed the plum puddign model

the total number of particles found in the nucleus of a given element

Experiments involving ___________ lead to the discovery of the nucleus.

Quantum mechanics is a branch of physics that deals with __________.

Current atomic models show that electrons travel in distinct , spherical orbits around the nucleus.