Atom Level 3 Study & Retake

Imagine you have a beautiful gold ring. What is the smallest unit of gold in that ring that still retains (keeps or has) the properties of gold?

• A. An atom

• B. A compound

• C. An electron

• D. A molecule

What is primarily responsible for the chemical properties (how it bonds) of an atom?

• Proton

• Neutron

• Electron

• Protons and Neutrons

The magic number when atoms bond is either 0, 2, or or what other number?

Which rule explains the stability of atoms when they have eight electrons in their outer shell?

• Quantum Rule

• Duplet Rule

• Octet Rule

• Electron Affinity Rule

Which group of elements is known for having a full outer electron shell, making them highly stable and unreactive?

• Group 1: Alkali Metals

• Group 2: Alkaline Earth Metals

• Group 7: Halogens

• Group 8: Noble Gases

Which element would react similar to Si?

• Aluminum (Al)
• Carbon (C)
• Hydrogen (H)
• None of the above

Which element would Na most likely form a "happy" compound with?

• F

• C

• N

• H

12. How many combinations of atoms are there?

• 756
• Millions
• Billions
• Infinite Number

Explain why there are infinite number of compounds that can be made.

Answer explanation

When atoms bond, they form somethng new with totally new properties. Atoms can combine in an infinte number of ways to make new substances. This is similar to how 26 letters can combine in different ways to make infinite words with different meanings.

When two or more different elements bond, something totally new is made.

• True
• False