EVERYDAY SCIENCE

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PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the best definition of an element?
A
A substance that is comprised (made up) of only one type of atom
B
A substance made up of two or more different kinds of atoms
C
Two compounds joined together Only metals
D
Only metals or pure gases
Explanation: 

Detailed explanation-1: -An element is a pure substance and is made of only one type of atom; it cannot be broken down into a simpler substance.

Detailed explanation-2: -Element is a chemical substance which is composed of same type of atoms or only of single kind e.g., periodic table consist of all elements in its pure form like Na, Mg, Cu, Pb etc.

Detailed explanation-3: -(EH-leh-ment) A basic part of a whole. In chemistry, refers to a simple substance that cannot be broken down into smaller parts or changed into another substance. The basic part of an element is an atom, which contains protons, neutrons, and electrons. All atoms of an element have the same number of protons.

Detailed explanation-4: -An element is a pure substance consisting of only one type of atom.

Detailed explanation-5: -In chemistry, a compound is a substance made up of two or more different chemical elements combined in a fixed ratio. When the elements come together, they react with each other and form chemical bonds that are difficult to break. These bonds form as a result of sharing or exchanging electrons between atoms.

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