Chemistry

posted by .

Why do beryllium and fluorine combine in a 1 : 2 Ratio?

Be is in group 2 (or IIA). F is in group VIIA (or 17 depending upon what system you are using). Therefore, flourine needs one electron to fill its outside shell. Be has two in its outside shell to give. So Be gives an electron to each of two F atoms to make BeF2.

why do beryllium and fluorine combine in a 1:2 ratio?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    Why would you expect lithium and sulfur to have different chemical and physical properties?
  2. Science (Chemistry)

    Can someone explain why the ratio of magnesium ions to chloride ions in MgCl2 is 1 :2 Mg is in group IIA and has two electrons in its outside shell. Cl is in group VIIA and has seven electrons in its outside shell. Mg wants to lose …
  3. chemistry

    Why do beryllium and fluorine combine in a 1:2 ratio?
  4. CHEM

    in addition to previous Q: for eg: why is the oxidation state (#) of Ca in CaH2 "+2"?
  5. Chemistry

    what is the charge on a typical ion for group 1A?
  6. chemistry

    Can someone please help me with these? How many electrons would Nitrogen, Aluminum, and Bromine gain or lose?
  7. chemistry

    Hi, can you tell me what the valency of Aluminium and Selenium?
  8. Chemistry

    Use these answers for questions 4 - 7. (A) 1s2 2s22p5 3s23p5 (B) 1s2 2s22p6 3s23p6 (C) 1s2 2s22p62d10 3s23p6 (D) 1s2 2s22p6 3s23p63d5 (E) 1s2 2s22p6 3s23p63d3 4s2 4. An impossible electronic configuration 5. The ground-state configuration …
  9. chemistry

    why do beryllium and flourine combine in a 1 : 2 ratio ?
  10. Chemistry

    Beryllium flouride's formula is BeF2. Why do beryllium and flourine combine in a 1:2 ratio?

More Similar Questions