Physical Science Unit 3 - Bonding and Naming

What is the chemical formula of aluminum oxide?

• ΑΙΟ

• Al₂O

• AIO 3

Tags

NGSS.MS-PS1-1

Study the electron dot diagrams for Li, C, F, and Ne in the boxes above. Which element is most stable?

• Carbon

• Neon

• Lithium

• Fluorine

Tags

NGSS.HS-PS1-1

What part of the atom is transferred in an ionic bond?

• ion

• electron

• proton

• anion

Each molecule of table sugar, C₁2H22O11, contains

• O atoms of carbon

• 1 atom of carbon

• 12 atoms of carbon

• 6 atoms of carbon

Tags

NGSS.HS-LS1-6

All Alkali Earth Metals form an ion with an oxidan number of

• +1

• -1

• +2

• -2

Which statement about metallic bonds is true?

• Electrons move freely between positive ions in a sea of electrons

• A metal lattice is extremely rigid

• The bonds within a metal lattice are weak

• Generally, metals have a low melting point

Tags

NGSS.HS-PS1-3

Describe what happens as Rubidium (atomic number 37) forms an ion.

• It gains one electron to become a cation

• It gains one electron to become an anion

• It loses one electron to become a cation

• It loses one electron to become an anion

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which are polar covalent bonds formed between?

• different ions

• the same ions

• different nonmetal atoms

• the same nonmetal atoms

How many valence electrons are in an atom of P?

Tags

NGSS.HS-PS1-1

Which of the following compounds has the formula KNO₂?

• potassium nitride

• potassium nitrate

• potassium nitrite

• potassium nitrogen oxide