GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The location of electrons circling the nucleus of an atom.
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The total amount of matter in something.
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A simple substance like water or cotton.
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A material that cannot be split into simpler materials; each element is made of only one kind of atom.
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Detailed explanation-1: -A pure substance made up of only one kind of atom is called an element. It cannot be broken down into simpler substances through chemical methods. Hydrogen, Carbon, and Silver are examples of elements.
Detailed explanation-2: -Elements are the simplest forms of matter and therefore cannot be broken down into simpler substances by any chemical or physical means. Elements are the building blocks for all other substances. Some examples of elements include hydrogen, oxygen, carbon, and sulfur.
Detailed explanation-3: -An atom is the part of an element. A particular element is composed of only one type of atom. Atoms are further composed of subatomic particles called electrons, protons and neutrons. Elements can combine with each other to form molecules via chemical reaction.