fill in the blanks with the number of valence electrons that each atom possesses:\n• si =\n• h =\n• s =\n•…
fill in the blanks with the number of valence electrons that each atom possesses:\n• si =\n• h =\n• s =\n• br =\n• ca =\n• n =
Answer
Explanation:
Step1: Locate Si in periodic table
Silicon (Si) is in group 14. Group number indicates valence - electron number for main - group elements. So Si has 4 valence electrons.
Step2: Locate H in periodic table
Hydrogen (H) is in group 1. So H has 1 valence electron.
Step3: Locate S in periodic table
Sulfur (S) is in group 16. So S has 6 valence electrons.
Step4: Locate Br in periodic table
Bromine (Br) is in group 17. So Br has 7 valence electrons.
Step5: Locate Ca in periodic table
Calcium (Ca) is in group 2. So Ca has 2 valence electrons.
Step6: Locate N in periodic table
Nitrogen (N) is in group 15. So N has 5 valence electrons.
Answer:
Si = 4 H = 1 S = 6 Br = 7 Ca = 2 N = 5