1) Number of shells Be has a) 1 b) 2 c) 3 d) 4 2) Number of shells Ge has a) 1 b) 2 c) 3 d) 4 3) Number of shells He has  a) 1 b) 2 c) 3 d) 4 4) Number of shells Ne has  a) 1 b) 2 c) 3 d) 4 5) Number of shells Te has  a) 1 b) 2 c) 3 d) 4 e) 5 6) Number of shells Xe has  a) 1 b) 2 c) 3 d) 4 e) 5 7) Number of valence electrons Ca has a) 1 b) 2 c) 3 d) 4 e) 5 8) Number of valence electrons Al has a) 2 b) 3 c) 4 d) 5 9) Number of valence electrons Si has a) 2 b) 4 c) 6 d) 8 10) Number of valence electrons I has a) 18 b) 17 c) 8 d) 7 11) Number of valence electrons O has a) 1 b) 3 c) 5 d) 6 12) Number of valence electrons Rb has a) 1 b) 2 c) 3 d) 4 e) 5 13) Element found in the halogen family  a) Br b) Mg c) H d) He 14) Element found in the most reactive metal family a) He b) Na c) O d) Cl 15) Which element has the same number of valence electrons and shells? a) Na b) Be c) Cl d) Ra 16) Shells are found by looking at... a) rows or periods on the periodic table of elements b) column or family on the periodic table of elements 17) Valence electrons are found by looking at... a) rows or periods on the periodic table of elements b) column or family on the periodic table of elements

Periods & Shells

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