GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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elements have more than one kind of atom while compounds have only one kind of atom
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elements can separate by physical means while compounds cannot
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compounds have more than one kind of atom while elements have only one kind of atom
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elements are acids while compounds are bases
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Detailed explanation-1: -Elements and compounds are pure chemical substances found in nature. The difference between an element and a compound is that an element is a substance made of same type of atoms, whereas a compound is made of different elements in definite proportions. Examples of elements include iron, copper, hydrogen and oxygen.
Detailed explanation-2: -Elements are pure substances which are composed of only one type of atom. Compound are substances which are formed by two or more different types of elements that are united chemically in fixed proportions. There are nearly 118 elements (at present) of which nearly 94 occur naturally on Earth.
Detailed explanation-3: -A compound contains atoms of different elements chemically combined together in a fixed ratio. Anelement is a pure chemical substance made of same type of atom. Compounds contain differentelements in a fixed ratio arranged in a defined manner through chemical bonds.
Detailed explanation-4: -An atom is the smallest part of an element that can exist. Compounds are formed from elements by chemical reactions. Compounds contain two or more elements chemically combined in fixed proportions and can be represented by formulae using the symbols of the atoms from which they were formed.
Detailed explanation-5: -A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.