Atoms etc
- Created by: muunaa.pat
- Created on: 24-10-18 04:54
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- Atoms
- The smallest particle of an element that can take part in a chemical reaction.
- Contain even smaller particles called sub-atomic particles.
- Protons
- Relative charge is positive
- Relative mass is 1
- its in the nucleus with neutrons
- Neutrons
- its relative charge is neutral
- Its relative mass is 1
- its in the nucleus with protons
- Electrons
- In the shells surrounding the nucleus
- Relative charge is Negative
- Protons
- Contain even smaller particles called sub-atomic particles.
- Atomic symbols
- Element symbol
- substance made out of one type of atom-bulding blocks of life
- Atomic number
- number of protons in the nucleus
- All atoms of a particular element have the same number of protons in their nucleus
- number of protons in the nucleus
- Atomic mass number
- sum of neutrons and protons
- Mass number
- relative atomic mass
- This is the mass of an atom compared to all the other atoms in the periodic table. Its ratio has no units.
- Element symbol
- Isotopes
- Are atoms that have the same number of protons but diffierent numbers of neutrons in their nucleus
- The smallest particle of an element that can take part in a chemical reaction.
- Relative mass is 1/1835
- it is negligible
- Electrons
- In the shells surrounding the nucleus
- Relative charge is Negative
- This is the mass of the atoms. It is caculated from adding the number of protons (Ar=1) to the numbers of neutrons (Ar=19, Electrons are regarded as having a mass of 0
- Mass number
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