Asked by Marissa
Write the symbol for the elements that fit the following descriptions
1. 10 electrons in each -3 ion
2. 18 electrons in each +2 ion
3. The alkaline earth metal in the third period
1. 10 electrons in each -3 ion
2. 18 electrons in each +2 ion
3. The alkaline earth metal in the third period
Answers
Answered by
Scott
1. -3 means 3 "extra" electrons
... this element is atomic number 7
2. +2 means 2 "lost" electrons
... this element is atomic number 20
3. column 2, row 3
... this element is atomic number 7
2. +2 means 2 "lost" electrons
... this element is atomic number 20
3. column 2, row 3
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