Stability and Bonding Quiz

What is formed when two or more elements are chemically combined?

• Mixture
• Solution
• Compound
• Atom

Tags

NGSS.MS-PS1-1

What does the chemical formula H₂O tell us?

• 1 hydrogen atom and 2 oxygen atoms
• 2 hydrogen atoms and 1 oxygen atom
• 2 hydrogen atoms and 2 oxygen atoms
• 1 hydrogen atom and 1 oxygen atom

Tags

NGSS.MS-PS1-1

Why do elements typically form compounds?

• To increase their mass
• To become stable
• To change their color
• To become radioactive

According to the Octet Rule, atoms tend to gain, lose, or share electrons to achieve how many electrons in their outer energy shell?

• 2
• 4
• 8
• 10

Why are Noble Gases generally nonreactive?

• They have too many neutrons.
• They have no electrons.
• Their outermost energy levels are already full.
• They exist only as liquids.

What is a chemical bond?

• A physical connection between nuclei
• A force that holds atoms together in a substance
• The process of radioactive decay
• A mixture of different elements

Tags

NGSS.MS-PS1-5

Ionic bonds typically form between which types of elements?

• A metal and a nonmetal
• Two nonmetals
• Two metals
• A metalloid and a noble gas

What is an ion?

• An atom with no electrons
• An atom with equal protons and neutrons
• An atom or molecule that has a charge due to losing or gaining electrons
• A particle found only in the nucleus

What is a cation?

• A negatively charged ion
• A neutral atom
• A positively charged ion
• An ion with no charge

Which type of element usually forms cations?

• Nonmetals
• Noble Gases
• Metalloids
• Metals