Periodic Table Study Guide

The horizontal rows (left to right) on the periodic table.

• Period

• Group

• Metals

Answer explanation

The horizontal rows on the periodic table are called periods. Each period represents a different energy level of electrons in the atoms of the elements in that row.

The vertical (up and down) columns on the periodic table.

• Period

• Group

• Metals

Answer explanation

The vertical columns on the periodic table are called 'Groups'. Each group contains elements with similar chemical properties, while 'Periods' refer to the horizontal rows.

Shiny substances found on the left side of the periodic table.

• Period

• Group

• Metals

Answer explanation

The shiny substances on the left side of the periodic table are metals. They are characterized by their luster, conductivity, and malleability, distinguishing them from nonmetals and metalloids.

Tags

NGSS.MS-PS1-1

Metals that in Group 1 that are very reactive in nature.

• Alkaline- earth metals

• Alkali metals

• Noble gases

• Transition metals

• Halogens

Answer explanation

The correct answer is 'Alkali metals' as they are the highly reactive metals found in Group 1 of the periodic table, known for their vigorous reactions with water and other substances.

Metals in groups 3-12

• Alkaline- earth metals

• Alkali metals

• Noble gases

• Transition metals

• Halogens

Answer explanation

Metals in groups 3-12 of the periodic table are known as transition metals. They are characterized by their ability to form variable oxidation states and complex ions, distinguishing them from alkaline-earth metals, alkali metals, noble gases, and halogens.

Metals that are in Group 2.

• Alkaline- earth metals

• Alkali metals

• Noble gases

• Transition metals

• Halogens

Answer explanation

Metals in Group 2 of the periodic table are known as alkaline-earth metals. They include elements like magnesium and calcium, which are characterized by their reactivity and are distinct from alkali metals, noble gases, and others.

Very reactive nonmetals. Found in Group 17

• Alkaline- earth metals

• Alkali metals

• Noble gases

• Transition metals

• Halogens

Answer explanation

Halogens are very reactive nonmetals found in Group 17 of the periodic table. They include elements like fluorine and chlorine, which are known for their high reactivity.

Nonreactive that do not react. Found in Group 18

• Alkaline- earth metals

• Alkali metals

• Noble gases

• Transition metals

• Halogens

Answer explanation

Noble gases, found in Group 18, are known for being nonreactive due to their full valence electron shells, making them stable and unlikely to form chemical bonds. This distinguishes them from other groups like alkali and alkaline-earth metals.

Tags

NGSS.MS-PS1-1

In the table above, which element is found in Group 6, Period 4?

• Mn

• Hf

• Cr

• Fe

Answer explanation

The element in Group 6, Period 4 is Chromium (Cr). It is located in the 4th row and 6th column of the periodic table, while the other options (Mn, Hf, Fe) belong to different groups or periods.

In the table above, which letter contains metals AND non-metals? _

• A

• B

• C

• D

• E

Answer explanation

Choice D contains both metals and non-metals, as it includes elements from both categories. The other options either contain only metals or only non-metals, making D the correct answer.