Structure of Matter

Periodic Table Structure

100

Draw and label a blank periodic table square.

Must see drawing for correct answer

200

 For an element square, the _________ tells you the number of protons AND electrons?

atomic number

300

Draw and label the complete element square for Oxygen (O). Include atomic number, element symbol, element name, and atomic mass

Must see drawing for correct answer

400

The rows of the periodic tell us the _______ levels of the electron cloud.

ENERGY

500

There are __ electrons in the 1st Shell

There are __ electrons in the 2nd Shell

There are __ electrons in the 3rd Shell

1: 2

2: 8

3: 18

Molecules vs. Compounds

100

Define "molecule" in one sentence

A molecule is two or more elements joined together that can be the SAME or DIFFERENT

200

 Define "compound" in one sentence and give one example from the test

Two or more DIFFERENT elements joined together.

300

Classify each: H₂O, O₂, CO₂, N₂ as molecule or compound.

H₂O-Compound

O₂-Molecule

CO₂-Compound

N₂-Molecule

400

 Explain why NaCl is a compound but not a molecule

It is composed of two different elements. Not the same element.

500

A _______ can be a ________. But a ________ CANNOT be a ___________.

A molecule can be a compound. But a compound CANNOT be a molecule.

Atom Counting

100

How many total atoms are in CH₄

C = 1

H= 4

Total: 5

200

For C₆H₁₂O₆, how many C, H, and O atoms are present? How many total?

C = 6

H=12

O=6

Total: 24

300

How many atoms of Na and Cl are present in 3NaCl?

Na = 3

Cl = 3

400

For 2Al₂(SO₄)3, how many S, O, and Al atoms are present?

Al = 4

S = 3

O=12

500

CuSO₄·5H₂O, count the total number of oxygen atoms present in one formula unit.

Count oxygen atoms in CuSO4·5H2O:

• In the CuSO₄ part: there are 4 oxygen atoms.
• In the 5H₂O part: each H₂O has 1 oxygen, so 5 × 1 = 5 oxygen atoms.

Total oxygen atoms = 4+5=9.

Answer: 9 oxygen atoms.

Formula Interpretation

100

The formula for glucose is C₆H₁₂O₆. How many atoms of each Oxygen are present in one molecule of glucose? Show your work.

6

200

True or False: The subscript in a chemical formula tells you how many atoms of that element are in the compound

True

300

Interpret the formula 4NH₃: how many N atoms and how many H atoms total?

N=4

H=12

400

Complete the Bohr model of Ar

Must see response 

500

Given the formula Pb(NO₃)2, determine the total number of N and O atoms.

N=2

O=6

CER/Scientific Reasoning

100

Claim: Is table salt (NaCl) a molecule or a compound? Give the single-word claim

Table salt (NaCl) is a compound. 

200

Evidence: Provide one piece of evidence that supports NaCl being a compound

Sodium (Na) and Cl (Chlorine) are two elements found on the periodic table joined together.

300

The scientific method is where you perform a _________The engineering process is where you______.

The scientific method is where you perform a EXPERIMENT The engineering process is where you SOLVE A PROBLEM or BUILD SOMETHING TO SOLVE A PROBLEM.

400

Which one is the scientific method or engineering process:

Sally wanted to see if her plant would grow faster if she added fertilizer

scientific method

500

CER: Write a short Claim–Evidence–Reasoning response (3–5 sentences) to the prompt: "Is table salt, HBr, a molecule or a compound? Use at least two pieces of evidence and explain using atomic structure ideas

Claim: HBr is a compound.

Evidence: Hydrogen (H) and Br (Bromine) are two elements found on the periodic table bonded together.

Reasoning: A compound is two or more elements that are bonded together