Fluorine has atomic number 9. Which element has an atomic number 8 greater than that of fluorine? And which has an atomic number 18 greater than that? And 18 greater than that? And 32 greater than that? In which group(s) of the periodic table are these ele- ments?
What are the elements of Group 15? What is the difference between the atomic numbers
of each successive pair of members?

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Tod ThielLv2

8 Jan 2019

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Place the elements in their proper position on the periodic table. To make this more challenging. I have not included their identities. Instead of the usual chemical symbol, each element is represented by a code letter. Some clues to the element's identities are listed below. In addition, the elements fall into these families or groups.

JKQ, WNVG, IAL, EPFZ, YBR, ODS, CXU, THM

Place each code letter in its proper space in the table below. Indicate the actual chemical symbol that corresponds to each letter.

V is an inert gas

E is an alkali metal

U is a halogen

D is in family VA

J is an alkaline earth metal

T is in family VIA

R has one less proton than A

A has six protons in its nucleus

R has an atomic number one more than J

O has an atomic number one more than A