an atom of potassium has protons and 20 neutrons. Its which periodic group of el

Question

an atom of potassium has protons and 20 neutrons. Its which periodic group of elements is not correctly matched toits common family name? a.alkaline-earth elements   Group 2 b.alkalimetals                   Group3 c.halogens                       Group 17 d. noblegases                   Group18 the alkali metals are found in ____ of the periodic table. a.group 1 b. group 2 c.period 1 d. period 2 elements in Group 17 are known by what name? halogens,alkalimetals,alkaline-earth metals,noble gases an atom of potassium has protons and 20 neutrons. Its which periodic group of elements is not correctly matched toits common family name? a.alkaline-earth elements   Group 2 b.alkalimetals                   Group3 c.halogens                       Group 17 d. noblegases                   Group18 the alkali metals are found in ____ of the periodic table. a.group 1 b. group 2 c.period 1 d. period 2 elements in Group 17 are known by what name? halogens,alkalimetals,alkaline-earth metals,noble gases

Explanation / Answer

b. alkali metals are found in group 1 not group 3 this is also the answer to the second(third?) item elements in group 17 are known as halogens... not sure what the question concerning potassium is, though...

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