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How are solutions different from heterogeneous mixtures?
the heterogeneous is made of different substances while the solution is the same throughout.
Why do atoms bond?
Atoms what their outer shell to be full
How do ions form?
By adding or removing electrons
How is an electrovalent and a covalent bond different?
ionic bonds transfer electrons. covalent bonds share electrons.
What particles make up most of the mass of an element?
protons and neutrons
Which 2 particles are found in the nucleus?
protons and neutrons
Which particle has a negative charge?
electron
Which particle is equal to the atomic number?
proton
Which particle has a neutral charge?
neutron
How many electrons can the second energy level of an atom hold?
8
Why are noble gases considered inactive?
Their outer most energy level is full
What are the characteristics of metal?
They are malleable, ductile, and good conductors of heat.
Why are alkali metals found in nature combined with other elements?
Because they are active metals
How are electrons arrange?
By their energy levels
What are the "Stair steps" on the periodic table called?
Non Metals
How are the elements arranged on the periodic table?
They are arranged by the atomic number
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