Atoms & The Periodic Table Test

1. How is the periodic table organized?

• Alphabetically by the names of the elements.
• By increasing atomic number, which is the number of protons in an atom.
• According to the mass of the elements.
• Based on the number of electrons in each element.

2. By examining the periodic table, what can you infer about elements in the same group (vertical column)?

• They have similar chemical properties.
• They have the same atomic mass.
• They belong to the same family.
• They are isotopes.

List 1 element (spell it correctly).

Answer explanation

Any element from the periodic table works.

4. "Poor conductors of heat and electricity" is a common physical property of nonmetals on the periodic table.

• True
• False

5. Magnesium (Mg) is located to the right of sodium (Na) because Mg has

• fewer protons.
• no neutrons.
• no protons.
• more protons.

6. What is Mendeleev is known for?

• creating today’s atomic model
• discovering protons
• publishing the first periodic table
• discovering Mendelevium

7. The atomic number of an atom is determined by the number of protons it has.

• True
• False

8. 8. Protons have a _______ charge.

• Positive

• Negative

• Neutral

9. 9. Neutrons have a _______ charge.

• Positive

• Neutral

• Negative

Electrons have a _______ charge.

• Positive

• Neutral

• Negative