The most important atomic property for explaining bonding behavior is the number of protons. number of electrons in the valence energy level. mass of the atom. number of neutrons. number of electron energy levels.
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- The “octet rule” in chemistry helps predict the types of bonds thatatoms will form. In general, an atom will be most stable if it fills itsouter shell of 8 electrons. Atoms with fewer than 4 valence electronstend to donate electrons and those with more than 4 valence electronstend to accept additional electrons; those with exactly 4 can do both.Using this rule, determine what category each of the followingelements falls into: N, S, C, P, O, H, Ca, Fe, and Mg. (You will needto work out the valence of the atoms.)Which of the following are true about covalent bonds? Select all that apply. In a covalent bond, one electron is transferred from one atom to another. A triple covalent bond forms when atoms share six electrons. A double covalent bond occurs in H,. A double covalent bond occurs when two atoms share two pairs of electrons. Single covalent bonds are quite strong, but double and triple bonds are even stronger.Give examples of four different types of bond involving hydrogen atoms. (polar covalent, non-polar covalent, hydrogen bonding and ionic). Comment on any unusual features and consequences of the examples you cite.
- Covalent and ionic bonds are the main features of nearly every biological molecule. Discuss how each of these bonds forms, and why they are so important in biological molecules.Identify one type of noncovalent bond present in each solid. Table salt (NaCl) Graphite (C repeating) Answer bank: van der Waals interactions, hydrophobic interactions, hydrogen bonds, ionic interactionsIf an electron spends more time with one atom in a molecule and less time with another, the atom with the electron spending more of its time will be partially negatively charged. the same partially positively charge
- Which of the following combinations describes the electron in the modern model of an atom? O negative charge and located in orbitals surrounding the nucleus Opositive charge and located in orbitals surrounding the nucleus negative charge and located in the nucleus Ono charge and located in the nucleusDiscuss whether the following statement is correct: “An ionic bond can, in principle, be thought of as a very polar covalent bond. Polar covalent bonds, then, fall somewhere between ionic bonds at one end of the spectrum and nonpolar covalent bonds at the other end.”List three main types of chemical bonds, and give an example of each.
- Draw a “dot & cross” diagram to show the shape of a water molecule (H2O). Bond angles need to be shown. State the shape of a water molecule.An atom has 11 protons and another has 17 protons. What type of chemical bond would most likely form between the two? O non-polar covalent O polar covalent O hydrogen O ionic O hydrophobic Next « PreviousH B H H A H H What do we call the bonds labelled A and B? Covalent bond, hydrogen bond Hydrogen bond, ionic bond lonic bond, covalent bond Hydrogen bond, covalent bond H