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14088206
States of matter
Descrição
Chemistry Mapa Mental sobre States of matter, criado por Shravani Chingre em 07-06-2018.
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chemistry
Mapa Mental por
Shravani Chingre
, atualizado more than 1 year ago
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Criado por
Shravani Chingre
aproximadamente 6 anos atrás
13
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Resumo de Recurso
States of matter
Demonstrate understanding of the terms atom and molecule and elements
Atom- The smallest particles of matter that cannot be broken down further by the chemical reaction.
Molecule- Group of atoms bonded together
Periodic Table
Groups- The vertical colums numberd 1-8. Elements in teh same group have the similar chemical properties.
Periods- The horizontal rows numberd 1-7. Elements in teh same period have that sme number of outer shells.
The zig-zag line seperates the metals from the non-metals.
Stucture of atoms
Atomic number- It is the number of protons in the nucleus
Nucleon number- It is the mass number which is the numer of protons + nutrons
Isotopes and radioactivity
Isotopes- atoms of the same element which have the same number of protons but different number of nutrons.
Use of radioisotopes.
Radiotherapy- to kill cancer by killing cancer cells.
Kill germs and bactaria to sterilise medical equipment, kill bactaria on fruits, vegetable and meat
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