Physical Science

Can anyone explain why covalent bonds are formed when nonmetals from the right side of the periodic table bond with each other with some examples?

  1. 👍
  2. 👎
  3. 👁
  1. Atoms bond to each other, usually, for one reason; that is, to complete their electron shell. There are two ways of doing this.
    a. Metals (atoms on the left of the periodic table) join non-metals (atoms on the right of the periodic table). Here the metal losing one or more electrons and it is actually transferred to the non-metal. The metal atom now has a + charge and the non-metal has a - charge. The is called an ionic bond which actually is the attractive force between the + and - charges. The metal is left with its outside shell filled (having lost the electron(s) in its outer shell) and the non-metal has gained electrons to fill its outside shell. The term electronegativity is used to tell us how easily electrons lose (or gain) those electrons.
    b. However, when two atoms that are alike try to combine, their electronegativity rating is exactly the same and neither electron has the ability to pull electrons from the other. These atoms must find another way to bond since they can't exchange electrons; therefore, they share their electrons. Basically, when two Cl atoms combine, they share their 14 electrons (7 electrons from each Cl atom) in such as way as to make each Cl atom think it has eight in its outside shell.
    We can't draw these structures on the board
    Cl:Cl with : top, bottom, and side of ech Cl atom.
    Or the H atom is another example. Each H atom has 1 electron and it needs two so they share the two like this H:H. Thus each H atom thinks it has two electrons--we've made 1 electron do the job of two. Basically, then, atoms that are alike share electrons.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science

    1) Which of the following is true about photosynthesis? A. It is an exothermic reaction B.It is a endothermic reaction ***** C.It produces carbon dioxide D. It occurs in animals 2) Atomic Theory is A.Subject to change if new

  2. Biology

    These are true and false questions and I want to make sure that I got them right. 1. A water molecule is held together by two single polar covalent bonds. False 2. Because oxygen has a greater electronegativity than hydrogen,

  3. Chemistry

    In a methane molecule (CH4) there are 4 single covalent bonds. In an octane molecule (C8H18) there are 25 single covalent bonds. How does the number of bonds affect the dispersion forces in samples of methane and octane? Which

  4. Sogeri high school

    Hydrazine,N2H4 burns in oxygen... A...what are their product?(in chemical equation). B..How many bondes are broken? C..How many new bonds are formed from the. product side... D.Total energy required to break the bond? E.Total

  1. Science 6

    during the process of photosynthesis, plants convert carbon dioxide and water into glucose. Covalent bonds hold the glucose molecules together. the energy stored in these covalent bonds is called? A:nuclear energy. B:thermal

  2. Chemistry

    Are the bonds for these substances correct? Sodium chloride - ionic Sucrose - covalent Copper - metallic Calcium chloride - ionic Carbon - covalent Mercury - ionic Naphthalene - covalent Are any of these substances not strictly

  3. Biology

    These are true and false questions and I want to make sure that I got them right. 1. A water molecule is held together by two single polar covalent bonds. False 2. Because oxygen has a greater electronegativity than hydrogen,

  4. chemistry--please check

    1. What type of bond holds the atoms together within a single molecule of water? a. Hydrogen bonds b. Nonpolar covalent bonds c. Polar covalent bonds *** d. Ionic bonds 2. Where are covalent bonds found? a. Both between and within

  1. Chemistry

    ______________ are similar to covalent bonds in that they hold atoms together. They are different from covalent bonds in that they ___________ . A. Ionic bonds; hold atoms together within a molecule B. Intermolecular forces;

  2. Science

    Which of the following is a characteristic of nonmetals? Nonmetals are often brittle solids. Nonmetals are often malleable. Nonmetals often conduct electricity. Nonmetals are often ductile.

  3. Chem Help!

    The presence of 11-cis retinal, C20H28O, in cells in the eye is important for vision. The structure of retinal includes an aldehyde group, a cyclohexene ring and a long aliphatic side chain, in which a carbon-carbon double bond

  4. Science

    1. An atom that loses or gains electrons is called a(n)____. isotope proton neutron ion*** 2.Which subatomic particles are most involved in chemical bonding? protons electrons*** neutrons isotopes 3.The main types of chemical

You can view more similar questions or ask a new question.