Periodic Table

The vertical columns in the periodic table are called:

• groups

• periods

• rows

• configurations

The modern periodic table is arranged according to _____, but in the past it was arranged according to _____.

• atomic number, atomic mass

• atomic mass, atomic number

• valence electrons, isotope mass

• atomic number, isotope number

Identify the name of the group on the periodic table that contains inert gases.

• halogens

• noble gases

• alkali metals

• chalcogens

Two elements in the same _____ have similar chemical properties.

• group

• period

• row

• periodic table

The letter C is the _____ of carbon.

• Name

• Element symbol

• Isotope

• Nuclide

Select all the properties of metals.

• Luster

• Malleable

• Conductive

• Ductile

True or False: The reactivity of metals decreases as you move to the right in the periodic table.

• True

• False

These metals are the most reactive.

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Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

These metals are the second-most reactive type of metals in the periodic table.

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Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

These non-metals are called halogens.

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Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2