Atomic Structure
- Created by: Ilay_digregorio
- Created on: 14-11-19 18:11
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- Atomic Structure
- Atoms contain neutrons, electrons and protons
- Protons have a mass of 1 and a charge of +1
- Electrons have a mass of 1/1840 and a charge of -1
- Neutrons have a mass of 1 and a charge of 0
- Atomic number is the number of protons in the nucleus of an atom of that element
- Na has an atomic number of 11
- Isotopes are atoms of the same element with the same number of protons but different number of neutrons
- Mass number is the number of protons and neutrons in the nucleus of an atom of that element
- Relative isotopic mass is the mass of an atom of an isotope divided by 1/12 the mass of Carbon-12 atom
- Relative atomic mass is the weighted average mass of an atom of an element divided by 1/12 the mass of Carbon-12 atom
- Relative molecular mass is the average mass of a molecule of that element divided by 1/12 the mass of Carbon-12 atom
- Relative formula mass is the average mass of a formula unit divided by 1/12 the mass of a carbon-12 atom
- Atoms contain neutrons, electrons and protons
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