A characteristic of nonmetals is that they_____

gain electrons when forming ions

lose electrons when forming ions

form ions with positive charges

Which of the following indicates that a chemical change has occurred?

a yellow solid forms when solutions are mixed

Which of the following is false in regards to subatomic particles?

the mass of an electron and the mass of a proton are equal

electrons are negatively charged and are the lightest subatomic particle

protons are positively charged and have a mass of 1 amu

neutrons have no charge and are the same mass as a proton

Which is true regarding the nucleus of an atom?

it is the central core and composed of protons and neutrons

it is the central core and composed of protons and electrons

it has a positive charge and is composed of neutrons and electrons

it has a positive charge and has a low density

Which of the following equals one atomic mass unit (AMU)?

1/12th the mass of a carbon-12 atom

Which statement about ions is false?

anions form when atoms lose electrons

cations form when atoms lose electrons

anions form from when atoms gain electrons

Emission of light from an atom occurs when ____

electrons fall to lower energy levels

electrons jump to higher energy levels

electrons move into the nucleus

What is the relationship between frequency and wavelength?

frequency is wavelength divided by speed of light

wavelength equals frequency divided by speed of light

The electrons involved in chemical bonds ____

are always the ones closest to the nucleus

How do metals obey the octet rule when bonding?

they do not obey the octet rule

What would you feel if you were to touch a flask in which an endothermic reaction was taking place?

the flask would be colder that when the reaction started

the flask would be hotter than when the reaction started

the flask would be the same temperature as when the reaction started

How are new elements generated in a star?

nuclear fusion generates heavy elements from lighter elements

nuclear fission generates heavy elements from lighter elements

alpha particle emissions transform light elements into heavy elements

beta particle emissions transform light elements into heavy elements

Which property determines the life cycle of a star?

the materials of the star is made of

How does the Big Bang Theory suggest the universe was created?

a small hot point that kept expanding

a giant collision of two galaxies

Two clear, colorless solutions are mixed in a test tube, an insoluble compound forms in the test tube and settles on the bottom. What would you see in the test tube?

a white solid and a clear liquid

Chemistry Semester 1 Review 2019

Authored by Stephen Lerner

Chemistry

10th - 12th Grade

54 Questions

NGSS covered

Used 204+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A majority of the elements are the periodic table are____

metalloids

nonmetals

metals

gases

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which element in the third period has 4 valence electrons?

aluminum

scandium

silicon

carbon

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Elements in the same group or family have the same number of______

neutrons

protons

valence electrons

energy levels

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The periodic table is arranged in order of increasing ______

atomic mass

atomic numbers

electron number

isotope number

Tags

NGSS.HS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When looking at a group on the periodic table, how does atomic radius change from bottom to top?

tends to decrease

tends to increase

stays the same

increases then decreases

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following elements tends to lose electrons?

calcium

carbon

fluorine

neon

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many valence electrons does sulfur have?

Tags

NGSS.HS-PS1-1

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Chemistry Semester 1 Review 2019

A majority of the elements are the periodic table are____

Which element in the third period has 4 valence electrons?

Elements in the same group or family have the same number of______

The periodic table is arranged in order of increasing ______

When looking at a group on the periodic table, how does atomic radius change from bottom to top?

Which of the following elements tends to lose electrons?

How many valence electrons does sulfur have?

Which element has the smallest radius?

Water freezing at 0 degrees Celsius is an _____ property.

Which element in the third period has the largest atomic radius?

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