1.explain why each of the follwing pairs is not lieky to form an ionic bond.
a. chlorine and bromine
b. potassium and helium
c. sodium and lithium
2007-12-13 16:48:36 · 6 answers · asked by LumpiaEATER ! 2 in Science & Mathematics ➔ Chemistry
a. Chlorine and bromine are both halogens. They're both non-metals, and so if they were to form a compound, the bond would be covalent.
b. Helium is a noble gas. Noble gases have full outer orbits, so they don't form compounds naturally.
c. Sodium and lithium are both alkali metals. They are both metals, so they wouldn't bond naturally.
2007-12-13 16:58:26 · answer #1 · answered by phifreak1618 2 · 0⤊ 0⤋
Chlorine and Bromine would not really bond together because they are both non metals and both Halogens. They both have 7 electrons in valence shell and neither ionic nor covalent would help there cause.
Helium has its outer shell full, 2 electrons! It does hardly ever reacts and potassium is a metal and carries a + 2 charge.
Sodium and lithium are from same group, both carry a + 1 change and would not form ionic or covalent bond.
2007-12-13 17:00:53 · answer #2 · answered by Love Exists? 6 · 0⤊ 0⤋
chlorine and bromine form covalent bonds sice they can't lose electrons to form an ionic bond and become stable.(Ionic bond occurs only if two elements come together and one loses electrons while the other gains electrons to have completely filled outermost shells.
Helium already has a completely filled outermost shell so it need not react.
Sodium and Lithium do not form ionic bonds since neither can gain electrons. They can only lose electrons and i think 2 metals cannot bond with each other at all.
2007-12-13 17:36:19 · answer #3 · answered by Shravan K 2 · 0⤊ 0⤋
1. Because they form a covalent bond. There REALLY is BrCl.
2. Helium is very difficult to ionize.
3. Sodium and lithium are both group 1 metals, and want to ionicallybond with a cation, not an another anion.
2007-12-13 16:58:30 · answer #4 · answered by cattbarf 7 · 1⤊ 0⤋
chlorine and bromine are nonmetals, so they covenlently bond, not ionically
potassium doesnt form with noble gasses
sodium and lithium are both metals, so they dont form ionic bonds, they for metallic bonds
these are on the assumption that ionic bonds are one metal, and one nonmetal, bonded together
2007-12-13 16:53:27 · answer #5 · answered by ovenmits1 2 · 0⤊ 0⤋
1.Calcium sulfide has higher melting point.The high lattice energy shows that the lattice structure of calcium sulfide is hard to break as more energy is required to break it. 2.the chlorine atom has 7 valence electrons.This means chlorine requires one electron to complete its octet.This the electron that the chlorine atom readily accept.
2016-05-23 12:04:22 · answer #6 · answered by carolann 3 · 0⤊ 0⤋