which element has the greatest number of valence electrons available for bonding?\nselenium\nboron\ncalcium\n…

which element has the greatest number of valence electrons available for bonding?\nselenium\nboron\ncalcium\nchlorine

which element has the greatest number of valence electrons available for bonding?\nselenium\nboron\ncalcium\nchlorine

Answer

Brief Explanations:

  1. Determine the group number of each element in the periodic - table as the group number indicates the number of valence electrons for main - group elements.
    • Selenium (Se) is in Group 16, so it has 6 valence electrons.
    • Boron (B) is in Group 13, so it has 3 valence electrons.
    • Calcium (Ca) is in Group 2, so it has 2 valence electrons.
    • Chlorine (Cl) is in Group 17, so it has 7 valence electrons.
  2. Compare the number of valence electrons: 2 (Ca) < 3 (B) < 6 (Se) < 7 (Cl).

Answer:

D. chlorine