What is the atoms radius
1x10 to the -10m
What is inside of the nucleus
Inside the nucleus contains protons and neutrons
Keyfeature about the neculeas
It is in the middle of the atom, the nucleus has a radius of around one times 10 to the power of -14. It has a positive charge because of the protons, almost the whole mass of the atom is concentrated in the nucleus
Key features of electrons
They move around the nucleus in electron shells
They’re negatively charged and tiny but they cover a lot of space
The volume of the orbits determines the size of the atom
Electrons have virtually no mass
Particle. Relative Mass. Charge
Proton. 1. +1
Neutron. 1. -0
Electron. Very small. -1
G
The number of protons equal the same amount of electrons
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In an eye on the numbers of protons Doesn’t eat food numbers of electrons. This mean it has an overall charge. For example an ion with a two minus charge has two more electrons than protons.
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23
Na. The 23 is the mass number which tell you the total amount of protons and neutrons in the atoms
11. The number 11 is atomic number which tells you how many protons there are in the atom
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Periods go side ways
Grouos go downwards
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