24/25 Matter Part B Review

Front

What is the primary organizing principle of the periodic table?

Back

The periodic table is primarily organized by atomic number.

Front

Which element has the smallest ionization energy?

Back

Cesium (Cs) has the smallest ionization energy.

Tags

NGSS.HS-PS1-1

Front

What is a periodic trend?

Back

A periodic trend is a feature or pattern that occurs due to the arrangement of elements on the periodic table.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What type of elements are located to the left of the stair-step line on the periodic table?

Back

The elements located to the left of the stair-step line are metals.

Front

What does the period number of an element indicate?

Back

The period number corresponds to the number of energy levels in an atom.

Front

What is ionization energy?

Back

Ionization energy is the energy required to remove an electron from an atom.

Front

How does ionization energy change across a period?

Back

Ionization energy generally increases across a period from left to right.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

How does ionization energy change down a group?

Back

Ionization energy generally decreases down a group.

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost energy level of an atom.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is the significance of the stair-step line on the periodic table?

Back

The stair-step line separates metals from nonmetals and indicates the location of metalloids.