FAURILLO_3_Physical Science

FAURILLO_3_Physical Science

12th Grade

•

55 Qs

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FAURILLO_3_Physical Science

FAURILLO_3_Physical Science

Assessment

Quiz

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Other

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12th Grade

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Practice Problem

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Medium

Created by

angelica coner

Used 1+ times

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55 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which statement best explains why elements in the same group of the periodic table have similar chemical properties?

They have the same number of protons.

They have the same number of valence electrons.

They have the same atomic mass.

They have the same number of neutrons.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How does the atomic radius change as you move across a period from left to right?

It increases due to added electron shells.

It remains the same due to shielding effect.

It decreases due to increased nuclear charge.

It fluctuates randomly due to electron repulsion.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Ionization energy tends to increase across a period. What is the best explanation for this trend?

The number of electron shells increases.

The nuclear charge increases, pulling electrons more strongly.

Electrons are farther from the nucleus, making them easier to remove.

The atomic mass increases, making electrons more difficult to remove.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following best describes a covalent bond?

Transfer of electrons from one atom to another

Sharing of electrons between atoms

Attraction between positive and negative ions

Formation of a metallic lattice

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why do metals conduct electricity?

They contain free-moving valence electrons.

Their atoms share electrons in a covalent network.

They form ionic bonds with surrounding atoms.

They contain tightly bound electrons that resist movement.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why does increasing the temperature of a gas increase its pressure in a closed container?

Gas molecules move faster and collide more frequently.

Gas molecules increase in size.

The gas molecules condense into a liquid.

The number of gas molecules increases.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens to the entropy of a system when ice melts into liquid water?

It decreases because the molecules become more ordered.

It remains the same because energy is conserved.

It increases because the molecules become more disordered.

It fluctuates unpredictably due to phase change.

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