What does a Bohr model show about atomic structure?

The atom has electrons that have determined energy levels

The atom has negative electrons in a positive mass

The atom has a dense nucleus and a lot of empty space

What is wrong in this Bohr model of the element Carbon?

The model has too many electrons in the first level

The model needs more energy levels

The model needs less energy levels

What is different about a Bohr model and a Lewis Dot structure?

A Lewis dot structure only shows valence electrons

A Bohr model doesn't show valence electrons

A Bohr model doesn't have levels

A Lewis dot structure shows all the electrons

What does the a period in the periodic table tell us about the elements in that row?

The number of valence electrons

Elements that have similar properties

The oxidation numbers of the elements

What does the group number "5A" tell us about the elements in that group?

The number of valence electrons

Which of the following explains the trend for atomic radii down a group?

The atomic radius increases because the atom has more energy levels

The atomic radius decreases because the atom has less energy levels

The atomic radius increases because the atom has less energy levels

The atomic radius decreases because the atom has more energy levels

Use the following part of the periodic table. Which correctly lists the elements in order of increasing electronegativity?

1 Barium 2 Iron 3 Copper 4 Phosphorus

1 Barium 2 Iron 3 Phosphorus 4 Copper

1 Phosphorus 2 Copper 3 Iron 4 Barium

1 Iron 2 Phosphorus 3 Copper 4 Barium

Based on the information in the isotope notation, how many neutrons does this isotope of Neon contain?

Cannot tell with this information

How do we calculate the average atomic mass of three different isotopes of an element?

Multiply the atomic mass of the isotope by the percent abundance written as a decimal then add

Add the three masses and divide by 3 then multiply by 100

Divide the atomic mass on the periodic table by 3 then multiply by the percent abundance

Subtract each atomic mass of the isotope from the average atomic mass on the periodic table

Why does this model show that this Beryllium atom is a positive ion?

It has more protons than electrons

It has more electrons than protons

It has less neutrons than electrons

It has less neutrons than electrons or protons

A student completed the electron orbital diagram for Carbon. What is wrong with their diagram?

It does not have one electron in each orbital before they pair

It does not have a complete lower level

It does not have both electrons spinning down in each orbital

It does not have the correct number of electrons

A student completed the electron orbital diagram for the element for Oxygen. What is wrong with their diagram?

It does not have complete lower levels

It does not have one electron in each orbital before they pair

It does not have an electron spinning down in each orbital

It does not have the correct number of electrons

What is wrong with the following electron configuration for the element Titanium?

It should be "3d" instead of "4d"

The shapes' letters are out of order

How are energy and frequency related in the energy level and wave diagram?

Frequency and energy are directly proportional. Both increase together.

Frequency and energy are inversely proportional. One increases the other decreases.

Frequency and energy are always equal.

Frequency and energy are not related.

When an electron is absorbing energy, it will...

remain in the same energy level

In the flame lab, electrons emitted light when...

they relaxed and released energy

they got excited and moved up levels

they remained in the same energy level

FINAL EXAM REVIEW PART 1

Authored by Sandra Peralta

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9th - 12th Grade

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48 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the first step in ANY emergency procedure?

Call 911

Tell the teacher.

Go to the eye wash station.

Use the fire extinguisher.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is located at the location marked with an "X"?

Fire extinguisher

Safety shower

Emergency gas switch

Fire blanket

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is located at the location marked with an "X"?

Fire extinguisher

Safety shower

Emergency gas switch

Fire blanket

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which of the following shows measurement conversions done correctly?

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Indicate the number of significant figures in the following number: 0.0056

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Round the following calculator answer to the correct number of sig figs: 23.1 x 7.2 = 166.32 (HINT:count the sig figs in the problem first...)

200 to one sigfig

170 to two sigfigs

166 to three sigfigs

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct standard notation for the following number:

727

72,000

72,000,000

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FINAL EXAM REVIEW PART 1

Which of the following is the first step in ANY emergency procedure?

What is located at the location marked with an "X"?

What is located at the location marked with an "X"?

Which of the following shows measurement conversions done correctly?

Indicate the number of significant figures in the following number: 0.0056

Round the following calculator answer to the correct number of sig figs: 23.1 x 7.2 = 166.32 (HINT:count the sig figs in the problem first...)

What is the correct standard notation for the following number:

What is the correct scientific notation for the number 562,000,000

This famous scientist used the gold-foil experiment to support his idea that the atom has a positive nucleus.

This famous scientist used the cathode ray tube experiment to support his idea that the atom has negative electrons floating in a "plum-pudding" model.

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