14.2 Elements, Compounds and Mixture - Elements

Select your Class

• 7th A
• 7th B
• 7th C

Enter your Roll Number:

Enter your Full Name

A substance whose molecules are made of one or more atoms which are exactly alike, is called as _________.

• an element
• compound
• mixture
• matte

The smallest particle of the substance is called as _________

• Molecule
• atom
• matter
• element

We do not get different substances by the decomposition of __________

• compount
• mixture
• matter
• element

Select True of False :- The smallest particle of element is made up of only one type of atoms.

• True
• Flase

Select True of False :- The mass and volume of atoms of different elements are different.

• True
• Flase

Up to date, Scientists have discovered ______ elements.

• 92
• 118
• 37
• 115

________ elements are occur in nature, while remaining are man-made.

• 92
• 118
• 37
• 115