Chemistry Lecture Midterm Pt 2.

• 45°F

• 77°F

• 68°F

• 82°F

• 100 K

• 273.15 K

• 373.15 K

• 473.15 K

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Proton

• Positron

An atom with 11 protons, 12 neutrons, and 10 electrons is a(n):

• Neutral atom

• Cation

• Anion

• Isotope

Which of the following elements is a halogen?

• Sodium

• Chlorine

• Calcium

• Iron

What is the electron configuration for a Neon atom?

Which of the following is a property of metals?

• Poor conductor of electricity

• Brittle

• Good conductor of electricity

• Non-reactive

• 26.85°C

• 27°C

• 30°C

• 0°C

Which of the following is an example of an isotope?

Which element is classified as a metalloid?

• Silicon

• Oxygen

• Iron

• Helium