atoms and molcues
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| opposite of part | whole
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| opposite of substance | mixture
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| opposite of positive | negative
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| opposite of proton | electron
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| opposite of heterogeneous | homogeneous
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| opposite of individual | multiple
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| opposite of solvent | solute
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| opposite of element | compound
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| opposite of bond | detach
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| positively charged particle in the nucleus of an atom | proton
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| region surrounding an atom's nucleus where one or more electrons are often found | electron cloud
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| negatively charged particle that occupies the space in an atom outside the nucleus | electron
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| one or more atoms of an element having the same number of protons but a different number of neutrons | isotope
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| region at center of an atom that contains most of the mass of an atom | nucleus
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| an atom that has a charge because it has gained or lost electrons | ion
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| the number of protons in the nucleus of an atom of an element | atomic number
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| uncharged particle in the nucleus of an atom | neutron
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| the nucleus of an atom contains ______________ and neutrons | protons
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| the nucleus has a _____________ and the __________ of the atom | positive charge and most mass
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| an electron is ___________ particle located outside the nucleus | negatively charged
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| the modern model of an atom is called the _______ model | electron-cloud
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| electrons that are close to the nucleus have _______ than electrons that are farther from the nucleus | less energy
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| to atomic number is the number of ________ in the nucleus of an atom of an element | proton
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| isotopes have the same number of protons but different numbers of _________ | neutrons
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| an ion has charge because it has gained or lost __________ | electrons
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| a ________ ion has more protons than electrons | positive
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| adding an __________ to a neutral atom produces a new element | proton
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| which particle in an atom has a positive charge | proton
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| which particle in an atom has no charge | neutron
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| which particle in an atom has a negative charge | electron
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| where is most if the mass of an atom found | nucleus
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| the _______________ is the number of protons in the nucleus of an atom of an element | atomic number
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| you can identify an element if you know its atomic number or _______________ | the number of protons
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| in the periodic table, the atomic number of an element is the __________ above its symbol | whole number
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carreali2911
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