Atomic Structure Flashcards - Part 1

Rewrite the Sentence Correctly.
Atoms are the smallest _______ of _______.

Atoms are the smallest particles of matter.

Rewrite the Sentence Correctly.
An atom is the smallest particle of a(n) ______ that still has all the properties of that ______.
Hint: They are the same word.

An atom is the smallest particle of an element that still has all the properties of that element.

Rewrite the Sentence Correctly.
An atom that is electrically charged because of the loss or gain of an electron is called an ______.

An atom that is electrically charged because of the loss or gain of an electron is called an ion.

Rewrite the Sentence Correctly.
Atoms that have fewer or more neutrons in the nucleus than normal are called ______.

Atoms that have fewer or more neutrons in the nucleus than normal are called isotopes.

Which part of an atom has a positive electrical charge?

Protons

Which part of an atom has no charge and is electrically neutral?

Neutrons

Protons and Neutrons are located in the atoms' what?

Nucleus

Which part of an atom is negatively charged and is found orbiting an atom's nucleus?

Electrons

When atoms join with other atoms, what are formed?

Molecules

When atoms of two different elements chemically combine, a new substance is created or formed. What are these new substances called?

Compounds

What law states the following?
Like electrical charges repel each other and unlike electrical charges attract each other.

The Law of Electrical Charges

What do we call the number of protons in an atom's nucleus?

The Atomic Number

Number of Protons + Number of Neutrons = What?

The Atomic Mass Number

Select All the Examples of Isotopes.

C-12

C-13

C-14