THE ATOM Unit 1: Section 1
Page 2 and 3
- Created by: Jenna190
- Created on: 03-10-19 19:03
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- The Atom -page 2 & 3
- Subatomic particles
- Electrons
- Have a -1 relative charge
- Whizz around in orbitals that take up most of the volume of the atom
- Have a relative mass of 1/2000
- Nucleus
- Neutrons
- Relative mass of 1
- Relative charge of 0
- Protons
- Relative mass of 1
- Relative charge of +1
- Most of the mass is concentrated in the nucleus
- Neutrons
- Electrons
- Ions
- Have different numbers of electrons and protons
- A negative ion is formed by gaining electrons
- A positive ion is formed by losing ions
- A negative ion is formed by gaining electrons
- Have different numbers of electrons and protons
- Isotopes
- Isotopes are atoms of the same element with different numbers of neutrons
- They have the same electron configuration as the element and therefore have the same chemical properties
- A lot of physical properties (i.e density and rates of diffusion) is due to mass and so they can have different physical properties
- Subatomic particles
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