Structure of the Atom

Chemistry - Structure of the Atom

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Structure of the Atom af Mind Map: Structure of the Atom

1. Subatomic particles

1.1. Proton

1.1.1. +1 charge

1.1.2. AMU = 1

1.2. Neutron

1.2.1. 0 charge

1.2.2. AMU = 1

1.3. Electron

1.3.1. -1 charge

1.3.2. AMU = negligible

2. Nucleus

2.1. Location of protons and neutrons

2.2. Dense core of atom

2.3. Majority of atom's mass

3. Electron cloud

3.1. Location of electrons

3.2. Majority of atom's volume

4. Atomic number

4.1. Referred to as Z

4.2. Every atom of an element has same atomic number

4.3. Same number of protons in nucleus

4.4. Z= # of protons = # of electrons

5. Mass number

5.1. Referred to as A

5.2. # of protons (Z) + # of neutrons