Ch.2 Review_CH090

Which sublevel can hold a maximum of 6 electrons?

• s

• p

• d

• f

What is the symbol for an electron in a Lewis dot structure?

• A circle

• A dot

• A dash

• A square

Which scientist proposed the model of the atom with electrons in specific energy levels?

• Dalton

• Bohr

• Rutherford

• Thomson

What is the general electron configuration for alkali metals?

Which orbital type is spherical in shape?

• s

• p

• d

• f

• Neon

• Chlorine

• Sodium

• Argon

Arrange the following elements in order of increasing atomic radius: Na, Mg, Al.

• Na < Mg < Al

• Al < Mg < Na

• Mg < Al < Na

• Na < Al < Mg

Which of the following ions has the same electron configuration as neon?

• All of the above

Which of the following best explains why ionization energy increases across a period?

• Increased shielding

• Increased nuclear charge

• Decreased number of protons

• Decreased electron affinity