Periodic Table Families & Coloring

Multiple Choice

Which scientist developed the first periodic table and how were the elements arranged?

• Henry Moseley, atomic number

• Dmitri Mendeleev, atomic mass

• Dmitri Mendeleev, atomic number

• Henry Moseley, atomic mass

Math Response

The periodic table is organized into ___ rows called periods.

Type answer here

Correct Answer: 7

Deg^°

Rad

Multiple Select

Which of the following statements about periods in the periodic table is/are correct? Select all that apply.

• There are 7 periods in the periodic table

• Elements in the same period have the same number of electron shells

• Periods are horizontal

• Elements in the same period have the same number of protons

Multiple Choice

What does the period number (n) in the periodic table represent?

• The number of protons in an atom

• The number of neutrons in an atom

• The number of energy levels in an atom

• The number of electrons in the outer shell

Math Response

Fill in the blank: Lithium is in Period ___ and has two energy levels.

Type answer here

Correct Answer: 2

Deg^°

Rad

Multiple Choice

Which of the following elements has three energy levels (n = 3)?

• Hydrogen (H)

• Oxygen (O)

• Sodium (Na)

• Lithium (Li)

Multiple Choice

Which of the following statements best explains why hydrogen and sodium are both in Group 1 of the periodic table?

• They both have only one valence electron.

• They both are gases at room temperature.

• They both have the same atomic mass.

• They both are metals.

Multiple Choice

Which of the following elements has three valence electrons?

• Boron (B)

• Hydrogen (H)

• Sodium (Na)

• Neon (Ne)

Open Ended

How many valence electrons does Helium have, and how is this different from other elements in Group 18?

Multiple Choice

Which group of elements on the periodic table is characterized by being the most reactive metals, having only one valence electron, and being highly reactive with water?

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Halogens

Multiple Choice

Which group on the periodic table is harder and more dense than alkali metals, has two valence electrons, and does not react with water?

• Alkali Metals

• Alkaline Earth Metals

• Transition Metals

• Noble Gases

Multiple Select

Which of the following are properties of transition metals?

• Usually form colored compounds

• Have 1-2 valence electrons

• Are generally unreactive

• Are gases at room temperature