SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Proton
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Neutron
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Electron
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Quark
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Detailed explanation-1: -A proton is one of three main particles that make up the atom. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.
Detailed explanation-2: -The atom’s nucleus contains two kinds of particles: neutrons and protons. We say that protons have charge of +1 and that neutrons have no charge.
Detailed explanation-3: -Scientists distinguish between different elements by counting the number of protons in the nucleus (Table 4.5. 1). If an atom has only one proton, we know that it’s a hydrogen atom.
Detailed explanation-4: -Atoms are constructed of two types of elementary particles: electrons and quarks. Electrons occupy a space that surrounds an atom’s nucleus. Each electron has an electrical charge of-1.
Detailed explanation-5: -The charge on 1 proton is 1.6 x 10-19 C.