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Six Major Elements
- Hydrogen (H)
- Carbon (C)
- Nitrogen (N)
- Oxygen (O)
- Phosphorus (P)
- Sulfur (S)
- Sodium (Na)
- Magnesisum (Mg)
- Chlorine (Cl)
- Potassium (K)
- Calcium (Ca)
What are the three parts of the atom?
Protons are located in the ________ and have a ______________ charge.
nucleus and have a positive
Neutrons are located in the ___________ and have a ____________ charge.
nucleus and have a nuetral
Electrons are located in the ____________ and have a ____________ charge.
orbavlas/ outer rings and have a negative charge
In the innermost orbital there can be ____ number of electrons.
In the outermost orbital there can be a __ number of electrons.
The atomic number is the number of ____ in an atom.
When the number of protons is equal to the number of electrons the atom has a net charge of ________.
zero and the atom is neutral.
The atomic mass is the sum of the atoms __________ and ________.
Protons and neutrons.
Atoms of the same element that had different number of neutrons are called
To determine the number of neutrons,
subtract the atomic number from the weight.
When two or more atoms transfer electrons in order to complete the outermost orbital
When an atom has lost or gained electrons
the atom has lost electrons and has a positive charge
the atom has gained electrons and has a negative charge
when two or more atoms share electrons
When electrons are not shared equally among atoms
when electrons are shared equally among atoms
when 1 pair of electrons are being shared between two carbon atoms
when 2 pairs of electrons are being shared
when 3 pairs of electrons are being shared
when two ore more atoms have been chemically combined together
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