Atoms & Molecules, Pre-Summative Review 2- 2023

Pre-Summative Review
Atoms & Periodic Table

Pre-Summative Review

Atoms & Periodic Table
**The Test is on Monday 10/30 (A classes) and Tuesday 10/31 (B Classes)

• If you haven't already done so, pull up a copy of the periodic table. ** You'll need it.

• Take your time as you work through this pre-summative review.

• Read the information slides carefully.

• Read the multiple choice questions and answers carefully BEFORE choosing an answer.

• I've disabled the timer so you can look back at previous slides if necessary.

• Make sure you also read the explanation slides.

Parts of an Atom

• ​The nucleus is located in the center of an atom.

• Protons are positively charged subatomic particles located in the nucleus.

• Neutrons have no charge and are located in the nucleus with the protons.

• Electrons are negatively charged and are located outside of the nucleus in energy shells.

Multiple Select

What are the 3 subatomic Particles?

(Choose all that apply)

• nucleus

• neutrons

• protons

• electrons

• isotopes

Multiple Select

Check all that are correct about an electron.

• Electrons are positive

• Electrons are negative

• Electrons are inside the nucleus

• Electrons are outside the nucleus

• Electrons are very small

Multiple Choice

Which statement is correct?

• Protons are located outside the nucleus and have a positive charge.

• Protons are located inside the nucleus and have a positive charge.

• Protons are located outside the nucleus and have no charge.

Multiple Choice

Which statement is correct?

• Neutrons are located outside the nucleus and have a positive charge.

• Neutrons are located inside the nucleus and have a positive charge.

• Neutrons are located inside the nucleus and have no charge.

Multiple Select

Which two subatomic particles add mass to the atom?

• Protons

• Neutrons

• Electrons

• quarks

Multiple Choice

In this diagram, which letter refers to the negatively charged particles?

• A

• B

• C

• D

Multiple Choice

In this diagram, which letter refers to the

neutrons?

• A

• B

• C

• D

Multiple Choice

The table to the left shows the composition of an unknown atom. Use your periodic table to figure out which atom is described in the table.

• Titanium (Ti)

• Potassium (K)

• Beryllium (Be)

• Sulfur (S)

Multiple Choice

What are the correct number of subatomic particles for an atom of Strontium?

• 38 protons,

  38 electrons,

  and 38 neutrons

• 87 protons,

  87 electrons,

  and 38 neutrons

• 38 protons,

  38 electrons,

  and 87 neutrons

• 38 protons,

  38 electrons,

  and 50 neutrons

Reorder

Put the following elements in order from most reactive to least reactive.

1

2

3

4

• 1
• 2
• 3
• 4

Multiple Choice

Which description best fits this molecule, C₄Fe₂O

• a compound made up of 3 different elements

• a compound made up of 7 different elements

• an element made up of 3 different atoms

• a compound made up of 4 different elements

Multiple Choice

Which of the following descriptions BEST fits this substance: C₄Fe₂O

• a molecule that contains four atoms of carbon, two atoms of iron, and one atom of oxygen

• a molecule that contains four atoms of carbon, two atoms of iron, and no atoms of oxygen

• an atom that contains four molecules of carbon, 2 molecules of Iron, and 1 molecule of oxygen

• an atom that contains four molecules of carbon, two molecules of Iron, and no molecules of oxygen

Multiple Choice

Based on information from the periodic table, which atom is shown in this diagram?

• Carbon (C)

• Sodium (Na)

• Magnesium (Mg)

• Boron (B)

Multiple Choice

A substance has the chemical formula FeSn_{4 .} One molecule of this substance contains

• two different elements with atomic numbers of 26 and 50.

• three different elements with atomic numbers of 26, 16, and 7.

• three different elements with atomic numbers of 56, 32, and 14.

• two different elements with atomic numbers of 56 and 119.

Multiple Choice

The diagram show oxygen and carbon. Based on the information in the periodic table, what does the diagram represent?

• one molecule of oxygen and one atom of carbon

• one molecule of oxygen and one molecule of carbon

• one atom of oxygen and one atom of carbon

• one atom of oxygen and one molecule of carbon

Multiple Choice

Where in the periodic table are the most reactive metals found?

• Period 1

• at the bottom

• groups 13-16

• Group 1

Multiple Choice

Which two elements have properties that are the most similar?

• Li and Na

• Li and Be

• Ca and Sc

• Na and Mg

• Similar elements will be in SAME GROUP!!! (column)

• Elements in same period may have totally different properties.

• ​**Even if they are next to each other, they may be totally different because they have different number of valence electrons!!!

• Nothing else matters!!...just that they are in the same group!!

Explanation for last question:

READ!!!

Multiple Choice

The illustration below, taken from the periodic table, provides information about the element Potassium (K).

Where would the element with atomic number 20 be placed on the periodic table?

• to the left of potassium

• to the right of potassium

• above potassium

• below potassium

Multiple Choice

The illustration below, taken from the periodic table, provides information about the element Strontium (Sr).

Where would the element with atomic number 37 be placed on the periodic table?

• to the left of Strontium

• to the right of Strontium

• above Strontium

• below Stontium

Multiple Choice

If your company made a machine part out of the element Berylium (Be), but they ran out of Berylium, and asked you to make it with a similar metal, which of the following elements would be the best choice?

• Radium

  ( Ra )

• Lithium

  ( Li )

• Boron

  ( B)

• Sodium

  (Na)

Multiple Choice

What is the atomic number of Carbon(C)?

• 6

• 12.011

• 12

• 5

Multiple Choice

How many protons does Carbon have?

• 6

• 12.011

• 12

• 5

Multiple Choice

Where would the element with atomic number 9 be placed on the periodic table?

• above neon

• below neon

• to the left of neon

• to the right of neon

Multiple Choice

The pictures show two elements from the periodic table. These 2 elements have similar chemical properties. Predict how they would be placed on the periodic table.

• They should be placed in the same period with Ca on top and Mg below.

• They should be placed in the same period with Mg on top and Ca below.

• They should be placed in the same group with Ca above and Mg below.

• They should be placed in the same group with Mg above and Ca below.

Multiple Choice

*Refer to your periodic table to answer this question. Which of the following statements explains the location of Calcium on the periodic table?

• It has one more proton than potassium (K), so it is located after potassium, and its a metal, so it's located on the left side of the table.

• It has one more proton than potassium (K), so it is located after potassium, and it is a non-metal, so it's located on the right side of the table.

• It has one less proton than potassium (K), so it is located after potassium, and it is a metal, so it is located on the left side of the table.

• It has one less proton than potassium (K), so it is located after potassium, and it is a non-metal, so it is located on the right side of the table.

Atoms & Molecules

• An element is made up of only 1 kind of atom.

• The smallest particle of of an element is an atom.

• An atom is one single piece.

​Elements & Atoms

​In this picture, there are
6 different atoms.

​Molecules

• A substance that is made up of more than 1 atom combined.

• If a molecule is made of only 1 type of atom, then it is an ELEMENT.

• If a molecule is NOT made of all the same atoms, then it is a COMPOUNDI

• ​In this diagram, there are 4 molecules.

• 2 are element molecules.

• 2 are compound molecules.

Multiple Choice

Carbon dioxide has the following chemical formula: CO₂.

How many total atoms are found in the most basic unit of carbon dioxide?

• 1

• 2

• 3

• 4

Multiple Choice

This diagram shows oxygen and carbon. Based on information from your periodic table, what is represented in the diagram?

• one molecule of oxygen and one atom of carbon

• one atom of oxygen and one molecule of carbon

• one atom of oxygen and one atom of carbon

• one molecule of oxygen and one molecule of carbon

Multiple Choice

A substance has the chemical formula BeNS₃. One molecule of this substance contains

• three different elements with atomic numbers of 9, 14, and 32.

• three different element with atomic numbers of 4, 7, and 16.

• two different element with atomic numbers of 7 and 16.

• two different elements with atomic numbers 14 and 32.

Multiple Choice

Which table correctly models the substances

Fe₂, S, and FeS₂.

Fe₂ = 2 atoms of Fe.

S = 1 atom of S. (**no subscript means only 1 atom.)

FeS₂ = 1 atom of Fe and 2 atoms of S

​Explanation

Poll

Rate your understanding of the material covered in this quizizz.

(Atoms & Periodic Table)

• 1

  (Totally confused)

• 2

  (Still working on it.)

• 3

  (Almost mastered.)

• 4

  (Mastered it!)

Audio Response

If you chose a 1-3, what do you need to do to get to a 4?

How can I help you get there?

Open Audio Recorder