G7- Final Review Chapter 3 [Term1]

Multiple Choice

Which scientist discovered the electrons?

• Dalton

• Thomson

• Atristotle

• Bohr

Multiple Choice

Bohr discovered that electrons are located in

• the nucleus

• inside protons

• electron cloud

• circular orbits around the nucleus

Multiple Choice

The smallest particle of an element that still represents that element.

• Nucleus

• electron

• proton

• atom

Multiple Choice

What is the center of an atom called?

• nucleus

• electron cloud

• proton center

• photon center

Multiple Choice

In Dalton's Atomic Theory, all elements consist of __________ that cannot be divided.

• Atoms
• Parts
• Molecules
• Hydrogen

Multiple Choice

Who was the Greek philosopher who called the smallest particle of matter an "atom"?

• Democritus

• Aristotle

• J.J Thompson

• Einstein

Multiple Choice

Which of the following is/are conclusions based on Rutherford’s gold foil experiment?

• Atom is mostly empty space

• The nucleus is positively charged

• The atom has a small dense nucleus

• All answers are correct

Multiple Choice

Rutherford's gold foil experiment provided evidence that...

• negative and positive charges are spread evenly throughout the atom.
• alpha particles have a positive charge.
• gold is not a dense as previously thought.
• there is a dense positively charged nucleus at the center of an atom.

Multiple Choice

J.J. Thomson provided evidence that an atom...

• is the smallest particle of matter
• contains negatively charged particles
• has an overall negative charge
• has an overall positive charge

Multiple Choice

Which of the following is NOT a part of Dalton's atomic theory?

• All elements are composed of atoms.
• Atoms are alwyas in motion.
• Atoms of the same element are always identical.
• Atoms that combine do so in simple, whole-number ratios.

Multiple Choice

What did James Chadwick discover?

• neutrons
• electrons
• the atomic theory
• protons

Multiple Choice

Which one of the following is the correct order of scientific contribution of the atom?

• Chadwick, Dalton, Bohr, Rutherford, Democritus,Thomson

• Thomson, Democritus,Rutherford, Bohr, Dalton ,Chadwick

• Dalton, Chadwick ,Bohr, Rutherford, Democritus,Thomson

• Democritus, Dalton, Thomson, Rutherford, Bohr, Chadwick

Multiple Choice

Who was the first person to come up with the Atomic Theory which included four parts.

• John Dalton

• Democritus

• Ernest Rutherford

• Niels Bohr

Multiple Choice

Who discovered that the nucleus contains positively charged particles called protons?

• Ernest Rutherford
• James Chadwick
• Democritus
• Niels Bohr

Multiple Choice

Used the word "atomos" to decsribe the uncuttable (indivisible) atom.

• Democritus

• Thomson

• Bohr

• Dalton

Multiple Choice

Proposed that electrons move around the nucleus in specific layers, or shells.

• Bohr

• Rutherford

• Chadwick

• Thomson

Multiple Choice

This picture best represents ___________________ atomic model.

• Thomson's

• Dalton's

• Bohr's

• Chadwick's

Multiple Choice

Who proposed the 'plum pudding' model of the atom?

• o Dalton

• o Thomson

• o Rutherford

• o Bohr

Multiple Choice

Which of the four Physicists was first to work with cathode rays?

• o Dalton

• o Thomson

• o Rutherford

• o Bohr

Multiple Choice

Which model of the atom was created directly after the cathode ray tube experiment?

• plum pudding

• quantum mechanical model

• atomic model

• bohr model

Multiple Choice

Which experiment discovered the nucleus of the atom?

• cathode ray tube

• gold foil experiment

• heisenberg's uncertainty principle

• flame test experiment

Multiple Choice

Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

• Albert Einstein

Multiple Choice

Place the following atomic models in order, from earliest to latest:

A) Rutherford B) Thomson C) Dalton

• B, C, A

• C, A, B

• A, C, B

• C, B, A

Multiple Choice

What can you conclude from the fact that scientists continue to update the atomic model?

• New information about atoms continues to be discovered
• Old information about atoms is completely useless
• Scientists did not have any information about atoms until a few years ago
• Scientists still have no idea what atoms look like

Multiple Choice

In the atomic model nicknamed the "plum pudding" model, what do the plums represent?

• the nucleus

• the atom

• the electrons

• the positive material

Multiple Choice

All matter is made of what

• energy

• atoms

• electrons

• compounds

Multiple Choice

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Multiple Choice

Particles in an atom that are neutral and have no charge are 

• negatrons 
• electrons 
• neutrons 
• protons 

Multiple Choice

A particle that circles around the nucleus is a(n)...

• Proton

• Neutron

• Electron

Multiple Choice

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Multiple Choice

The central region (middle part) of an atom where its neutrons and protons is its

• nucleus

• electron cloud

• core

• center

Multiple Choice

An atoms overall charge is 

• positive 
• depends on its mood 
• neutral 
• negative 

Multiple Choice

an atom with atomic number 6 would have how many protons 

• 6
• 12
• 3
• cannot be determined 

Multiple Choice

Where are electrons of an atom found?

• Nucleus
• Electron Cloud
• Some are in the nucleus and some in the electron cloud.
• They are moving everywhere.

Multiple Choice

Most of the mass in an atom is concentrated in the...

• electrons
• nucleus
• protons
• empty space

Multiple Choice

What is the atomic number for an element with three protons?

• 2

• 1

• 3

• 6

Multiple Choice

What is the atomic mass of "F"

• 9
• 18
• 17
• 19

Multiple Choice

How many neutrons are in the atom "K"?

• 7

• 2

• 39

• 20

Multiple Choice

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Multiple Choice

What is the atomic number?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Multiple Choice

What is the mass number defined as?

• the number of protons
• the number of protons and neutrons
• the number of neutrons
• the number of protons and electrons

Multiple Choice

What is the atomic number of this atom?

• 1
• 3
• 4
• 7

Multiple Choice

What is the mass number of this atom?

• 1

• 3

• 4

• 7

Multiple Choice

The fluorine atom has an atomic number of

• 19

• 9

Multiple Choice

What is the mass number and atomic number ?

• Mass number = 7, atomic number = 14

• Mass number = 14, atomic number = 7

Multiple Choice

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

Multiple Choice

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

Multiple Choice

The mass of one proton is greater than the mass of one...

• neutron
• electron

Multiple Choice

Which subatomic particle has a negative charge in the atom?

• proton

• neutron

• electron

• quark

Multiple Choice

How many neutrons are there in one atom of magnesium?

• 12

• 6

• 24

Multiple Choice

Which element has a mass number of 12 and contains 6 neutrons?

• Gallium

• Copper

• Carbon

• Sodium

Multiple Choice

ALL atoms of the same element have:

• same number of proton

• same number of nucleon

• different number of neutron

• different number of electron

Multiple Choice

The relative molecular mass of a compound is equal to the sum of its

• Atomic mass
• Atomic number
• Oxidation number
• Valence electrons

Multiple Choice

24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?

• 74.92 amu
• 24.97 amu
• 75.01 amu
• 74.51 amu

Multiple Choice

What does the 1.00794 stand for?

• Hydrogen
• atomic number
• atomic mass
• atomic explosion

Multiple Choice

Calculate the average atomic mass of the element iron (Fe) using the following data:

[Isotope / % abundance]

[Iron 54 / 6% ] [Iron 56 / 92% ] [ Iron 57 / 2% ]

• 53.7 amu

• 54.9 amu

• 5592.0 amu

• 55.9 amu

Multiple Choice

An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to

• 2 amu
• 3 amu
• 4 amu
• 5 amu

Multiple Choice

4.35% of all X atoms have a mass of 39.946 amu. 83.79% have a mass of 41.941 amu, 9.50% have a mass of 42.941 amu, and 2.36% have a mass of 43.939 amu. What is the average atomic mass of atom X?

• 41.97 amu
• 42.19 amu
• 10.43 amu
• 40.04 amu

Multiple Choice

For a given element, the atomic number indicates the number of _____

• protons in the nucleus
• neutron in the nucleus
• electrons in the atom
• nucleons in the atom

Multiple Choice

How many neutrons does the isotope of lithium have?

• 8
• 3
• 4
• 5

Multiple Choice

How many protons does this isotope of titanium have?

• 48
• 22
• 26
• 70

Multiple Choice

What is a positive ion called?

• anion

• cation

• isotope

• covalent

Multiple Choice

What is a negative ion called?

• anion

• cation

• covalent

• isotope

Multiple Choice

Which types of elements from cations?

• metals

• nonmetals

• metalloids

• noble gases

Multiple Choice

Which types of elements from anions?

• metals

• nonmetals

• metalloids

• noble gases

Multiple Choice

If an atom loses electrons, the charge will be positive.

• true

• false

Multiple Choice

A Bromine ion gains 1 electron, which of the following is the correct symbol for a Bromine ion?

• Br^-1

• Br⁺¹

• Br⁺⁷

• Br^-7

Multiple Choice

Cations are...

• Positive
• Negative
• Neutral
• Purring

Multiple Choice

Anions are...

• Positive
• Negative
• Neutral
• Crying

Multiple Choice

An atom becomes _________ when it gains electrons.

• Positive
• Negative
• Neutral
• Invinsible

Multiple Choice

An atom becomes _______ when it loses electrons.

• Positive
• Negative
• Neutral
• Invinsible

Multiple Choice

Which particles change the charge in atoms when ions are formed?

• Protons
• Electrons
• Neutrons
• Kittens

Multiple Choice

What is the ionic symbol for a phosphorus atom?

• P^-3
• P⁺³
• P⁺⁵

• P⁺²

Multiple Choice

Ions are: 

• atoms lose or gain electrons

• atoms with no charge
• atoms lose electrons

• atoms gain electrons

Multiple Choice

What do these isotopes of carbon all have in common?

• neutrons & mass number
• atomic number and neutrons
• atomic number and electrons
• protons, atomic number, and mass number

Multiple Choice

What quantities vary between isotopes of an element?

• protons, electrons, and atomic mass
• protons, electrons, and atomic number
• neutrons and electrons
• neutrons and atomic mass

Multiple Choice

which atom has  4 neutrons?

• Li-6
• Li-7
• Li-8
• they have the same # of neutrons

Multiple Choice

How many neutrons does the isotope below have?     ⁸⁹ ₃₆Kr

• 53
• 36
• 89
• 125

Multiple Choice

If X is the symbol for an element, which of the following two symbols represent    isotopes of the same element?     I. ⁷⁷₃₅X  II. ⁷⁷₃₃X  III. ⁸¹₃₇X  IV. ⁸¹₃₅ X

• I and II
• III and IV
• I and IV
• I and III

Multiple Choice

Four isotopes of lead include lead-204, lead-206, lead-207, and lead-208.  The average atomic mass of lead is 207.2.  Which isotope of lead is likely to be the most abundant.

• 204
• 206
• 207
• 208

Multiple Choice

An atom is electrically neutral when

• protons and neutrons are the same
• protons and electrons are the same
• neutrons and electrons are the same
• neutrons balance the protons and electrons

Multiple Choice

Isotopes of an element have a different number of...

• Protons

• Neutrons

• Electrons

• Mass

Multiple Choice

A neutral atom of the isotope ²⁶₁₂Mg would consist of

• 12 protons, 26 neutrons, 26 electrons
• 26 protons, 12 neutrons, 26 electrons
• 26 protons, 14 neutrons, 14 electrons
• 12 protons, 14 neutrons, 12 electrons

Multiple Choice

Which of the following statements regarding subatomic particles is incorrect?

• Protons are positively charged particles and neutrons have no charge.
• The relative mass of the proton, electron and neutron the same.
• In a neutral atom the number of protons equals the number of electrons.
• Isotopes of an element have the same number of protons but a different number of neutrons.

Multiple Choice

Isotopes of the same element have the same number of 

• protons
• neutrons
• electrons
• not enough information

Multiple Choice

Iron-60 (atomic number 26) is an isotope that is often used to study meteorites.  How many neutrons does iron-60 have?

• 26
• 60
• 34
• 86

Poll

How do you Evaluate yourself....Are you ready for the Final Exam

Open Ended

What are the points you still need help to understand

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