SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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element
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compound
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heterogeneous mixture
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homogeneous mixture
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Detailed explanation-1: -A pure substance is matter that is uniform throughout and has consistent properties. All matter is made up of very small particles called atoms. Atoms are the building blocks of all matter. When a substance contains only one type of atom, it is called an element.
Detailed explanation-2: -Solids, liquids, and gases are made of tiny particles called atoms and molecules.
Detailed explanation-3: -All matter consists of atoms, which, in turn, consist of protons, neutrons and electrons. Both protons and neutrons are located in the nucleus, which is at the center of an atom. Protons are positively charged particles, while neutrons are neutrally charged.
Detailed explanation-4: -Monoatomic is when a molecule of an element contains only one atom. For example, Helium-He and Potassium-K.
Detailed explanation-5: -element : A chemical substance that is made up of a particular kind of atom and cannot be broken down or transformed by a chemical reaction. substance : A form of matter that has constant chemical composition and characteristic properties. It is composed of one type of atom or molecule.