8.6B & 7.6B Mini-Quiz

What is the atomic number of carbon?

• 2

• 6

• 12

• 14

Which element is found in all organic compounds?

• Oxygen

• Nitrogen

• Carbon

• Hydrogen

Tags

NGSS.HS-LS1-6

Which of the following is a noble gas?

• Oxygen

• Neon

• Sodium

• Aluminum

What information does the atomic number of an element provide?

• The number of protons in the atom

• The number of neutrons in the atom

• The number of electrons in the atom

• The total mass of the atom

Which of the following elements is a metal?

• Hydrogen

• Oxygen

• Sodium

• Helium

What is the atomic symbol for potassium?

• P

• Po

• K

• Pt

Which element is in Group 1 and has one valence electron?

• Fluorine

• Sodium

• Carbon

• Nitrogen

A scientist examines a reaction where Zn + H₂SO₄ → ZnSO₄ + H₂. Which element in this reaction is replaced, and why?

• Zinc replaces hydrogen because it is more reactive.

• Hydrogen replaces zinc because it is a noble gas.

• Sulfur is removed from the compound.

• Oxygen is added to the reaction.

Tags

NGSS.MS-PS1-2

Which of the following correctly explains why helium is unreactive?

• It has a full outer electron shell.

• It has the lowest atomic number.

• It has one valence electron.

• It can form bonds easily.

A scientist is designing a new metal alloy and wants to use an element that is highly reactive and lightweight. Which element should they choose, and why?

• Aluminum, because it is strong and unreactive.

• Magnesium, because it is lightweight and reactive.

• Iron, because it is dense and durable.

• Gold, because it does not corrode.

Tags

NGSS.HS-ETS1-3