Atoms & Molecules

The ​ (a)   tells us how many protons, neutrons, and electrons are found in each element on the periodic table.

• group number
• period number
• atomic number
• atomic mass

The ​ (a)   on the periodic table tells us how many valence electrons an element has.

• group number
• period number
• atomic number
• atomic mass

Create a Bohr Model of an atom of Fluorine.

Tags

NGSS.MS-PS1-1

Create a Bohr Model of an atom of Phosphorus.

Tags

NGSS.MS-PS1-1

Reorder the following atoms in order of atomic number from smallest to largest.

• Arsenic (As)

• Potassium (K)

• Argon (Ar)

• Magnesium (Mg)

• Barium (Ba)

Create a Lewis Dot Structure of a molecule of Ammonia (NH₃)

Tags

NGSS.MS-PS1-1

Create a Lewis Dot Structure of a molecule of Carbon Dioxide (CO₂).

Tags

NGSS.MS-PS1-1

Draw a Lewis Dot Structure for a single element of Astatine (At).

Organize elements based on their number of valence electrons

Groups:

(a) 3 Valence Electrons

,

(b) 5 Valence Electrons

,

(c) 7 Valence Electrons

,

(d) Non-Matching Elements

• Fluorine

• Oxygen

• Indium

• Boron

• Arsenic

• Carbon

• Bismuth

• Iodine

Using the HONC1234 Rule as a guide, determine the amount of bonds each element is able to have.

Groups:

(a) 1 Bond

,

(b) 2 Bonds

,

(c) 3 Bonds

,

(d) 4 Bonds

• Arsenic

• Lead

• Potassium

• Sulfur

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2