Warmup: Concept: PS-2.2 Atomic number, Mass number, Element name.

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Warmup: Concept: PS-2.2 Atomic number, Mass number, Element name

Suppose an atom has: A mass number of 48AMU An atomic number of 22 A.Of w hat element is it an atom? B.How many Protons does the atom have? C.How many Neutrons does the atom have? D.What group is the element in? E.What period is the element in? F.How many electrons will the atom have if it is electrically neutral ( in the ground state)? G.What does “ground state” mean?

Suppose an atom has: A mass number of 48AMU An atomic number of 22 A.What element is it an atom of? Titanium B.How many Protons does the atom have? 22 C.How many Neutrons does the atom have? 26 ( That’s 48AMU – 22 Protons = 26 Neutrons) D.What group is the element in? 4 E.What period is the element in? 4 F.How many electrons will the atom have if it is electrically neutral (in the ground state)? 22 G.What does “ground state” mean? Electrically neutral.