Semester II Review Questions

Most of the volume of an atom is made up of the _________

• Nucleus

• electron

• electron cloud

• protons

How many significant digits are there in this measured value:

.0011230

• 7

• 5

• 4

• 6

Iron is in which block on the periodic table?

• p block

• f block

• d block

• s block

How many total electrons are there in the electron cloud of Te?

• 127.6

• 6

• 128

• 52

How many valence electrons are there in the outermost electron shell for the group 13 elements?

• 3 valence electrons

• 2 valence electrons

• 5 valence electrons

• 13 valence electrons

Identify the group that has the most reactive nonmetals.

• Group I

  Alkali metals

• Group 18

  Noble gases

• Group 16

  The Chalcogens

• Group 17

  The Halogens

Calculate the molar mass of iron (II) oxide.

(First write the correct chemical formula)

• 71.85 g/mol

• 127.70 g/mmol

• 87.85 g/mol

• 44.09 g/mol