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7 Cards in this Set
- Front
- Back
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Definition of Atom |
An atom is the smallest part of an element which still has the properties of that element |
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Where are the... (1) electrons (2) protons (3) neutrons Situated? |
(1) Electrons are in the orbit/shell (2) Protons are in the nucleus (3) Neutrons are in the nucleus nucleus |
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What is the charge of.... (1) an electron (2) a proton (3) a neutron ? neutron ? |
(1) electron ~ -1 (2) proton ~ +1 (3) neutron ~ 0 |
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Definition of atomic number? |
An atomic number is the number of protons in the nucleus of that atom |
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Definition of atomic mass number? |
The atomic mass number is the number of protons + the number of neutrons in an atom of that element |
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What is the 'definition' of reactivity? |
Every atom wants to have a full outer orbit. This will make the atom stable and unreactive |
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Definition of isotopes |
Isotopes are atoms of the same element that have different numbers of neutrons |
