VP #2: Understanding the Periodic Table

What symbol represent iron?

• F
• Fe2O3
• Ir
• Fe

What does the letter 'C' represent on the periodic table?

• Calcium

• Chlorine

• Carbon

• Copper

What does the atomic number represent?

• The number of protons in an atom.
• The number of neutrons in an atom.
• The total mass of an atom.
• The number of electrons in an atom.

How many elements are possible in the known universe?

• Approximately 118 elements
• About 200 elements
• Exactly 150 elements
• Around 100 elements

Which element makes up the majority of atoms in the Sun?

• Oxygen

• Helium

• Carbon

• Hydrogen

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The properties of each element are defined by

• The number of electrons in the atom.
• The atomic mass of the element.
• The arrangement of elements in the periodic table.
• The number of protons in the nucleus.

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If the last layer of the atom has the same number of electrons as other atoms, it means that

• The atoms are likely to have similar chemical properties.
• The atoms will form ionic bonds exclusively.
• The atoms will have completely different physical properties.
• The atoms will react violently with each other.

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Sodium (Na), Potassium (K) and Rubidium (Rb) all have ____ electron(s) in their outer layer.

• 4
• 1
• 2
• 3

What is the smallest part of a chemical element?

• Atom

• Compound

• Molecule

• Electron

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How are elements organized in the periodic table?

• By weight

• By color

• By size

• By atomic number