Elements of Chemistry

Which is an alkali metal?

• Magnesium

• Iron

• Sodium

• Europium

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 

• Metal

• Nonmetal

• Metalloid

• Pretty

I can be drawn into wires

• Malleable

• Ductile

• Luster

• Conductor

________ are the COLUMNS on the periodic table and are organized by similar properties.

• Classifications

• Groups

• Periods

• Elements

Which family is used to make coins?

• cabn family

• iron family

• copper family

• alkali metals

Guess the symbol of Iron...

• Fe

• Fr

• Ir

• In

Answer explanation

Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table.

Mn is the symbol of

Answer explanation

Manganese is a chemical element with the symbol Mn and atomic number 25.

It is a hard, brittle, silvery metal, often found in minerals in combination with iron.

Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Why mercury exists in liquid state at room temperature?

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

Reorder the following according to their atomic numbers

• Nitrogen

• Helium

• Flourine

• Oxygen

Answer explanation

Atomic numbers follows as

Helium -2

nitrogen - 7

oxygen - 8

flourine - 9

Match the following

• Ca

• Magnesium

• K

• Calcium

• Na

• Sodium

• Mg

• Potassium