Elements chemistry quiz

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

(a)  

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

Reorder the following according to their atomic numbers

• Nitrogen

• Flourine

• Oxygen

• Helium

Answer explanation

Atomic numbers follows as

Helium -2

nitrogen - 7

oxygen - 8

flourine - 9

Match the following

• Mg

• Potassium

• K

• Calcium

• Na

• Magnesium

• Ca

• Sodium

​ ​ (a)   Chemistry is related to ​ (b)   and its compounds

• Organic
• carbon
• hydron
• inorganic
• nitrogen
• physical

Tags

NGSS.HS-LS1-6

Tag the compound with the element it is made

a

lithium

cobalt

iron

Highlight the alkaline metals, noble gases in the periodic table

Why mercury exists in liquid state at room temperature?

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4