SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A charged particle
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The bump on the front of men’s necks
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A combination of atoms of the same kind
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The basic unit of matter of which all things are made
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Detailed explanation-1: -An atom is the basic building block of chemistry. It is the smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element.
Detailed explanation-2: -An atom is the smallest unit of matter that retains all of the chemical properties of an element.
Detailed explanation-3: -The basic unit of matter is the atom. Atoms are defined as the building blocks of matter that contain a nucleus consisting of protons and neutrons with electrons orbiting the nucleus. Each element that exists in the periodic table consists of a different combination of protons, neutrons, and electrons.
Detailed explanation-4: -An atom is a particle of matter that uniquely defines a chemical element. An atom consists of a central nucleus that is surrounded by one or more negatively charged electrons. The nucleus is positively charged and contains one or more relatively heavy particles known as protons and neutrons.
Detailed explanation-5: -(A-tum) The smallest part of a substance that cannot be broken down chemically. Each atom has a nucleus (center) made up of protons (positive particles) and neutrons (particles with no charge). Electrons (negative particles) move around the nucleus.