Chemical Bonds-Types of Chemical Bonds-QUIZ

How is electronegativity related to covalent bonding?

Atoms must have similar electronegativities in order to share electrons in a covalent bond.

Which statement describes how the bond between two oxygen atoms is formed?

by sharing valence electrons between the two atoms

Which type of atom has the strongest attraction for electrons in bond formation?

chlorine (Cl)

Which information would best fill the blanks in row 3?

covalent bond and low melting point

Which statement is generally true about CaCl2?

Its bonds are formed by large differences in electronegativity.

Which pair of elements would form an ionic bond?

strontium (Sr) and chlorine (Cl)

What will most likely happen when two bromine atoms bond together?

A covalent bond will hold them together.

Sugar is made up of clear, colorless crystals that dissolve easily in water, but the crystals and their solution do not conduct electricity. Which statement describes sugar?

It is made up of atoms that are held together by covalent bonds.

Which of these is a property of a substance that is composed of atoms that are held together by metallic bonds?

It can be flattened and bent.

Which of these is a typical property of a substance that is composed of atoms that are held together by covalent bonds?

It does not conduct electricity in any form.

Which statement best explains why a metal atom and a nonmetal atom are most likely to form an ionic bond?

Metal atoms have low ionization energy, and nonmetal atoms have high electronegativity, so electrons transfer easily from the metal atom to the nonmetal atom.

Consider the positions of carbon, nitrogen, potassium, and calcium on the periodic table. The atoms of which element attract electrons most strongly in chemical bonds?

Nitrogen (N)

Which statement describes the valence electrons in ionic bonds?

They are transferred from one atom to another.

Which statement explains why the bonds between nonmetals tend to be covalent?

They have small differences in electronegativity.

Which type of substances have chemical bonds that are not directional and valence electrons that move freely between the atoms?

metals

Which interaction is responsible for the force of attraction between the particles in a salt crystal?

proton-electron