Chapter 6. Section 3

Atoms with large ionization energy values are __________.

• more likely to form positive ions

• less likely to form positive ions

• most likely to lose their outer electrons

• lacking valence electrons

Which of the following elements is most likely to form a negatively-charged ion?

• I

• Br

• Cl

• F

Which of the following is an ion?

• O^2-

• C

• C

• lithium-3

Where would you expect to find the smallest atoms?

• upper left

• upper right

• lower left

• lower right

Why are the ionic radii generally larger for group 15 than for group 17?

• Atoms in group 15 are larger than atoms in group 17.

• Atoms in group 15 have more protons than atoms in group 17

• Ions forming from group 15 atoms have a greater negative charge than ions forming from group 17 atoms.

• Atoms in group 15 are less likely to lose electrons than atoms in group 17.

Why was Mendeleev's periodic table widely accepted

• He organized the first 14 known elements.

• He predicted the existence and properties of undiscovered elements.

• He was the first to notice a pattern of similar properties among elements.

• His periodic table listed all of the elements in the correct order

Which group on the periodic table is known as the halogens?

• group 1A

• group 2A

• group 8A

• group 7A

Which of the following elements is a metalloid?

• As

• Na

• W

• F

If the inner transition elements were placed in the space occupied by the heavy black line above, what would result?

• Electron configurations of the other elements would change.

• There would be no effect.

• The periodic table would be too wide to comfortably fit into most books.

• More elements would become radioactive.

Looking only at the box below, what can you say for certain about the element two spaces to the left of oxygen on the periodic table?

• The element is a liquid.

• The element will have atomic number 6.

• The element's atomic weight will be 12.

• The element's name will begin with the letter M.