Quiz 1 - atomic structure, Periodic table & trends, Isotope, ion

How many protons are in K (potassium)

• 15
• 19
• 17
• 20

Is Pb (Pallidum) a metal, nonmental or metalloid?

• metalloid
• metal
• nonmetal

Metals are bad conductors.

• True

• False

Nonmetals are dull.

• True

• False

Which of the following elements has the largest radius?

• Lithium (Li)
• Oxygen (O)
• Iron (Fe)
• Cesium (Cs)

Which of the following elements has the smallest electron negativity?

• Sodium (Na)
• Chlorine (Cl)
• Francium (Fr)
• Oxygen (O)

What is the full electron configuration for Ar (Argon)

• 1s² 2s² 2p⁶ 3s² 3p⁵
• 1s² 2s² 2p⁶ 3s² 3p⁶
• 1s² 2s² 2p⁶ 3s² 3p⁶ 4s²
• 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹

What is the Nobel Gas configuration for Sb (Antimony)

• [Xe] 6s² 5d¹⁰ 6p³
• [Kr] 5s² 4d¹⁰ 5p²
• [Ar] 4s² 3d¹⁰ 4p³
• [Kr] 5s² 4d¹⁰ 5p³

What is the atomic number of an element?

• The number of protons in the nucleus

• The number of neutrons in the nucleus

• The total number of protons and neutrons in the nucleus

• The total number of protons and electrons in an atom

Electrons are:

• Positive

• Neutral

• Negative