Chapter 4 Chemistry Quiz

Negatively charged subatomic particles

An arrangement of elements that allows you to easily compare properties of different elements

An arrangement of elements, the elements are separated based on a set of repeating properties

Positively charged subatomic particle

What can scientists do to observe individual atoms?

Atoms of the same element with different number of neutrons are called

What makes elements different from other elements?

In the nuclear atom, where are protons and neutrons located?

The smallest particle of an element that retains its identity in a chemical reaction

The tiny central core of an atom and is composed of protons and neutrons

Thomson performed experiments where he passed electric current through gases at a low pressure.

This experiment yielded evidence of the atomic nucleus

Who believed that atoms were indivisible and indestructible?

What is an example of a subatomic particle

How did Dalton use Democritus's ideas to make it into a scientific theory?

The number of protons in the nucleus of an atom of that element

One characteristic of a scientific theory is that

Horizontal row in the periodic table

How do you calculate the number of neutrons in an atom?

The total number of protons and neutrons in an atom is called