2.5 periodic table flash cards

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Tags

NGSS.MS-PS1-1

Front

The number of these in the outermost energy level determines an element's chemical properties or chemical reactivity.

Back

Valence electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

The atomic number identifies the number of __________.

Back

protons and electrons

Front

Subatomic particles that have a negative charge

Back

electrons

Front

The number 16 for the atomic element sulfur is the

Back

atomic number

Front

The group number equals?

Back

The number of valence electrons

Front

Elements in the same ____________ have similar chemical properties

Back

group

Front

Which of the following would change the name of the element if one was added or removed from the atom? Options: neutrons, protons, valence electrons, electrons

Back

protons

Front

The elements Potassium, Vanadium, Manganese, and Calcium are examples of

Back

Members of a period

Front

Which element has a mass number greater than nitrogen, but less than neon? Options: Oxygen, Lithium, Sodium, Helium

Back

Oxygen