The Chemical Behavior of Elements Quiz

Answer each question by clicking the correct blue button. Only the first answer selected is graded.

1.  Those electrons most important in determining the behavior of an element are:
A. core electrons, found in the inside energy levels.
B. valence electrons found in the outside energy level or valence shell.
C. all of the electrons each atom of an element has.
D. None of them, neutrons are most important.

2.  All the members of each group in the periodic table:
A. have similar chemical properties because they have the same number of neutrons.
B. have different chemical properties because they have the same number of electron energy levels.
C. have similar chemical properties because they have the same number of valence electrons.
D. have different chemical properties because they have a different total numbers of electrons .

3.  All atoms of the same element must have:
A. the same number of protons, hence the same atomic number.
B. the same number of neutrons, hence the same atomic mass.
C. different numbers of protons, hence different atomic numbers.
D. different numbers of neutrons, hence different atomic masses.

4.  The Octet Rule states that:
A. atoms lose, gain or share protons in order to attain an outer energy shell with 8 electrons.
B. atoms lose, gain or share neutrons in order to attain an outer energy shell with 8 electrons.
C. atoms lose, gain or share valence electrons in order to attain an outer energy shell with 8 electrons.
D. all atoms already have an outer energy shell with 8 electrons.

5.  When atoms of non-metals join with atoms of non-metals, they are most likely to form:
A. metallic bonds or a “sea of electrons”
B. covalent bonds wherein atoms share valence electrons.
C. ionic bonds wherein some atoms donate and some atoms accept valence electrons.
D. Bonds, James Bonds.

6.  Which of the following CANNOT be predicted for each element based upon the information contained in the periodic table.
A. The number of protons and electrons, and the average number of neutrons common to the atoms of each element.
B. The probable chemical properties of each element.
C. The number of electron energy levels and valence electrons found in the atoms of each element.
D. The date of discovery and the name of the scientist who discovered each element.

7.  Lewis dot diagrams:
A. represent the number of energy levels found around the atom of an element.
B. represent the number of protons found in the atomic nucleus of each atom.
C. represent the number of valence electrons found in the outside energy level of the atom.
D. represent the total number of electrons found around each atom.

8.  Which of the following is true of metals:
A. They usually form negative ions called anions.
B. They are usually poor conductors of electricity.
C. They usually form covalent bonds.
D. Most of the known elements are metals.

9.  The elements in Group 18 of the periodic table which usually do not join in chemical bonds are called:
A. noble gases.
B. metalliods.
C. metals.
D. alkali earth metals.

10.  Ionic bonds:
A. are formed when atoms of non-metals join to share valence electrons.
B. are formed when atoms of metals associate to form “a sea of electrons”.
C. are formed when an atom of a metal donates a valence electron to an atom of a non-metal.
D. are formed when atoms gain or lose neutrons.

Grade exam.