Chemistry: Chapter 6 Test

Which subatomic particle plays the greatest part in determining the properties of an element? A. proton B. electron C. neutron D. none of the above

Who arranged the elements according to atomic mass and used the arrangement to predict properties of missing elements> A. John Dalton B. Dmitri Mendeleev C. Henry Moseley D. Antonine Lavoisier

What is another name for the representative elements? A. Group B elements B. transition elements C. Group C elements D. Group A elements

For Group 2A metals, which electron is the most difficult to remove? A. the third B. the second C. the first D. All the electrons are equally difficult to remove.

How does atomic radius change from left to right across a period in the periodic table? A. It first decreases, then increases. B. It tends to decrease C. It tends to increase. D. If first increases, then decreases.

Why is the second ionization energy greater than the first ionization energy? A. The size of atoms increases down a group. B. The nuclear attract from protons in the nucleus decrease. C. It is more difficult to remove a second electron from an atom. D. The size of anions egresses across a period

How does atomic radius change from top to bottom in a group in the periodic table? A. It tends to decrease. B. It first decreases,then increase. C. It first increases, then decreases. D. It tends to increase.

In which of the following sets are the charges given correctly for all of the ions? A. Na+, Mg+, Al+ B. Rb-,Ba 2-, P 3+ C. N-, O 2-, F 3- D. K+, Sr 2+, O 2-

Which of the following elements is a transition metal? A. tellurium B. tin C. copper D. cesium

What causes the shielding effect to remain constant across a periodic table? A. The atomic radius increases. B. The change on the nucleus is constant. C. Electrons are added to the same principal energy levels. D. Electrons are added to different principal energy levels.

Which of the following decreases with increasing atomic number in Group 2A? A. ionic size B. ionization energy C. number of electrons D. shielding effect

Which of the following elements has the smallest atomic radius? A. selenium B. sulfur C. bromine D. chlorine

Which of the following factors contributes to the increase in ionization energy from left to right across a period? A. an increase in the shielding effect B. few electrons in the highest occupied energy level C. an increase in the number of protons D. an increase in the size of the nucleus

Which of the following statements is true about ions? A. Anions form when an atom gains protons. B. Cations form when an atom gains electrons. C. Cations form when an atom lose electrons. D. Anions form when an atom gains electrons.

Which of the following elements is in the same period as phosphorus? A. nitrogen B. oxygen C. magnesium D. carbon

The modern periodic table is arranged in order of increasing atomic........... A. charge B. number C. radius D. mass

What is the element with the highest electronegativity value? A. fluorine B. helium C. cesium D. calcium

What is the charge of a cation? A. no charge B. a negative charge C. a positive charge D. The charge depends on the size of the nucleus.

Which of the following factors contributes to the decreasing in ionization energy within a group in the periodic table as the atomic number increases? A. increase in size of the nucleus B. increase in atomic size C. increase in number of protons D. fewer electrons in the highest occupied energy level

Which of the following categories includes the majority of the elements? A. liquids B. nonmetals C. metalloids D. metals

Each period in the periodic table corresponds to....... A. a suborbital B. an energy sublevel C. an orbital D. a principal energy level

Elements that are characterized by filling of p orbitals are classified as.......... A. inner transition metals B. groups 3A through 8A C. groups 1A and 2A D. transitons metals

Atomic size generally........... A. increases as you move from left to right across a period B. decreases as you move from top to bottom within a group C. decreases as you move from left to right across a period D. remains constant within a period

Which of the following statements correctly compares the relative size of an ion to its neutral atom? A. The radius of an anion is identical to the radius f its neutral atom. B. The radius of a cation is greater than the radius of its neutral atom. C. The radius of an anion is greater than the radius of its neutral atom. D. The radius of a cation is identical to the radius of its neutral atom.

Compared with the electronegativity of the elements on the left side of a period, the electronegativity of the elements on the right side of the same period tend to be.......... A. lower B. higher C. unpredictable D. the same

Which of the following groupings contains only representative elements? A. Al, Mg, Li B. Ni, Fe, Zn C. Cu, Co, Cd D. Hg, Cr, Ag

Of the following elements, which one has the smallest first ionization energy? A. boron B. aluminum C. silicon D. carbon

To what category of elements does an element belong if it is a poor conductor of electricity? A. transition elements B. metalloids C. nonmetals D. metals

The metals in Groups 1A, 2A, 3A............ A. lose electrons when they form ions B. all form ions with a negative charge C. all have ions with a 1+ charge D. gain electrons when they form ions

Which of the following elements has the smallest first ionization energy? A. magnesium B. sodium C. potassium D. calcium