Quiz about Q1 Benchmark Review

Question 1

Natasha was comparing models of three atoms. She noticed they contained the same number of protons, but a different number of neutrons. Which of the following statements is TRUE for the atoms shown?

Accepted Answer

Each of the atoms represents isotopes of the same element.

Answer

Each of the atoms represent ions of the same element.

Answer

Each of the atoms represents a different element.

Answer

None of the atoms are neutral atoms.

Question 2

This is a model of a neutral carbon-12 atom. Which subatomic particle needs to be added in this atom so that is will become carbon-13?

Accepted Answer

One particle N need to be added to its nucleus.

Answer

One particle E needs to be added to its shells.

Answer

On particle P needs to be added to its nucleus.

Answer

On particle P and one particle N needs to be added to the nucleus.

Question 3

This is a model of a neutral hydrogen atom. Which of the following models represents a hydrogen atom with an atomic mass of 2?

Accepted Answer

Question 4

A fluoride ion and neon atom are shown. Which of the following comparisons is true?

Accepted Answer

They have the same number of electrons but different number of protons because, the fluoride ion has 9 protons and 10 electrons, while the neon atom has 10 protons and 10 electrons.

Answer

The fluoride ion has a different electron configuration than the neon atom because of the 1- negative charge.

Answer

They are similar because fluorine atom with a single negative charge has the same number of electrons as neon atom with a single negative charge.

Answer

They have the same number of electrons and protons because the nucleus of a fluoride ion is the same as the nucleus of a neon atom and both have 10 protons.

Question 5

Using the data on the periodic table provided, which of the following statements is TRUE?

Accepted Answer

The number of valence electrons increase going from left to right because more electrons are added on the outermost energy level.

Answer

All of the transition metals are solids because they have more in common with metals than they do with nonmetals.

Answer

The noble gases are found on the right side of the periodic table because that is where the nonmetals are found.

Answer

All metals form negative ions because they give up electrons to form bonds in compounds.

Question 6

The chart shows ion charges for main group elements. How could the elements sulfur (S), neon (Ne), and magnesium (Mg) be organized in order of increasing number of valence electrons?

Accepted Answer

magnesium, sulfur, neon

Answer

neon, sulfur, magnesium

Answer

sulfur, neon, magnesium

Answer

magnesium, neon, sulfur

Question 7

Throughout centuries, the metals copper (Cu), silver (Ag), and gold (Au) have been used to make coins and jewelry because they are less reactive with water, which makes them resistant to corrosion. They are also shiny and have remarkable colors. Which of the following explains how the similar properties of these three metals are reflected in the Periodic Table? (19036)

Accepted Answer

They all belong to the same group.

Answer

They all belong to the same period.

Answer

Copper is in group 4; silver is in group 5; and gold is in group 6.

Answer

Copper is in period 4; silver is in period 5; and gold is in period 6.

Question 8

The periodic table shows the location of all the elements. Which element has chemical properties that are the most similar to chlorine (Cl), and why?

Accepted Answer

Bromine (Br), because it is in the same group as chlorine

Answer

Sulfur (S), because it is in the same period as chlorine

Answer

Sodium (Na), because it can combine with chlorine easily

Answer

Selenium (Se), because it belongs to the nonmetals like chlorine

Question 9

Which of the following elements is a metalloid that would create a positive ion? (4261)

Accepted Answer

Antimony

Answer

Aluminum

Answer

Calcium

Answer

Sulfur

Question 10

What pattern can you observe in the Periodic Table regarding the ions that elements tend to form?

Accepted Answer

Elements tend to form positive ions as they become more metallic.

Answer

Elements tend to form negative ions as they increase in electrical conductivity.

Answer

Elements tend to form positive ions as their melting and boiling points decrease.

Answer

Elements tend to form negative ions as they decrease in number of valence electrons.

Question 11

Suppose that some new elements were discovered and in placing these elements on the periodic table, scientists added an extra row to the periodic table. This new row is between rows two and three and will be known as period 3.5. Which THREE statements describe the properties of the elements in this new row on the periodic table?

Accepted Answer

The element in Group 2 will have two valence electrons and will likely be in a solid state.

Accepted Answer

The element in Group 14 will have characteristics of both metals and nonmetals and will be a semiconductor.

Accepted Answer

The element Group 15 will gain three valence electrons when forming chemical bonds and will have the atomic number 15.

Answer

The element in Group 16 will have chemical and physical properties similar to those of chlorine, aluminum, and magnesium.

Answer

The element in Group 17 will gain or share one valence electron when forming chemical bonds and is most likely in a gas state.

Question 12

Which depicts the arrangement of particles in matter as the temperature is increased at constant pressure? (51641)

Accepted Answer

Question 13

A teacher showed a student diagrams of a substance that went through a phase change. What question does the student need to ask to determine what phase change has taken place?

Accepted Answer

What has happened to the parts of the atoms in diagram 2?

Answer

How much heat is within the system of diagram 1?

Answer

Is the substance electrically neutral in both diagrams?

Answer

How much space is there between the particles in both diagrams?

Question 14

Which of the following investigations could be carried out to prove that as pressure of a gas increases in a closed system, the volume will decrease?

Accepted Answer

study a working model of the lungs and diaphragm

Answer

study how a pressure cooker works to cook food

Answer

study a working piston system that is filled with air and then heated

Answer

study how a fire extinguisher works to displace the oxygen in a fire.

Question 15

When a solid melts to form a liquid, or a liquid evaporates to form a gas, heat energy must be added to the substance to cause the phase to change from one form to another. Which TWO models indicate the changes in particle arrangement for the phase changes shown?

Accepted Answer

Accepted Answer

Question 16

The Periodic Table of elements is a systematic arrangement of all known elements as rows and groups. The element chlorine is an example. Which TWO explanations show why the atomic number of each element is a whole number, while the atomic mass is not?

Accepted Answer

Protons only exist as whole particles, but the atomic mass represents a weighted average of the mass of all naturally occurring isotopes.

Accepted Answer

The atomic number is the number of protons, which is unique to each element, but the atomic mass is the sum of the mass for all protons and neutrons in the nucleus averaged for all naturally occurring isotopes.

Answer

The atomic number is the number of electrons, but the atomic mass is the total mass of protons and neutrons for all known isotopes.

Answer

The atomic number is exact because protons only exist as whole particles, but the atomic mass is not because isotopes can have fractional numbers of neutrons.

Answer

The atomic number is the number of electrons, but the atomic mass is sum of the number of electrons, protons, and neutrons averaged over all naturally occurring isotopes.

Question 17

Two ions of carbon are shown in the picture. For ease of reading each ion will be listed as ¹²C and ¹⁴C to keep the view simpler (but all the numbers remain important!)

Accepted Answer

¹²C has 8 electrons, 6 protons and 6 neutrons whereas ¹⁴C has 8 electrons, 6 protons and 8 neutrons

Answer

¹²C has 6 electrons, 6 protons and 6 neutrons whereas ¹⁴C has 8 electrons, 6 protons and 6 neutrons

Answer

¹²C has 8 electrons, 6 protons and 6 neutrons whereas ¹⁴C has 8 electrons, 6 protons and 6 neutrons

Answer

¹²C has 8 electrons, 6 protons and 6 neutrons whereas ¹⁴C has 6 electrons, 6 protons and 8 neutrons

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