Answer to Question #56198 in General Chemistry for Aleshia

Question

2. Write the number of core and valence electrons in Ca and Mg. (1 point each, Total 4 points)
Ca has ______ core electrons and ______ valence electrons.
Mg has _______core electron and ______ valence electrons.
3. Identify the element. (1 point each, Total 2 points)
(a) The element that contains 10 core electrons and 5 valence electrons. ____
(b) Its (1+) ion contains 18 core electrons and 7 valence electrons. _____

Answer 1

2. Ca has ___18___ core electrons and __2____ valence electrons.
Mg has ___10____core electron and ___2___ valence electrons.

3. (a) The element that contains 10 core electrons and 5 valence electrons. _P___
(b) Its (1+) ion contains 18 core electrons and 7 valence electrons. __Mn___