Science Exam 8

Multiple Choice

A pure substance that is make up of only one kind of atom

• Element

• Electricity

• Compound

• Molecule

Multiple Choice

A combination of two or more elements.

• Element

• Electricity

• Compound

• Molecule

Multiple Choice

It is formed by two or more atoms.

• Element

• Electricity

• Compound

• Molecule

Multiple Choice

An observable characteristic that decribes an object or a substance.

• Element

• Property

• Compound

• Matter

Multiple Choice

Characteristist of matter thay may be observed or measured without changing the chemical

• Physical properties

• Physical changes

• Chemical properties

• Chemical changes

Multiple Choice

Can be classified as element or compound, which one made up of atoms that retain their chemical properties until they undergo change through a chemical reaction.

• Matter

• Compound

• Element

• Atoms

Multiple Choice

Properties of matter that depend on the amount of matter

• Extensive

• Intensive

• Melting piont

• Durability

Multiple Choice

Properties of matter that not depend on the amount of matter

• Extensive

• Intensive

• Melting piont

• Durability

Multiple Choice

Observable changes in the appearance or physical property of matter while it does change a new

• Physical properties

• Physical changes

• Chemical properties

• Chemical changes

Multiple Choice

Chemical reactions that result in the formation of new substances or products

• Physical properties

• Physical changes

• Chemical properties

• Chemical changes

Multiple Choice

Observable changes in the appearance or physical property of matter while it does change a new

• Phy

• Physical changes

Multiple Choice

Is the ability of substance to undergo chemical changes to become a different kind of matter

• Physical properties

• Physical changes

• Chemical property

• Chemical changes

Multiple Choice

Are usually in liquid and gases forms are those that can easily catcj refat relatively low temperatures

• Flammable substances

• Ammability of a substance

• Volatility

• Volume

Multiple Choice

Based on its ash point, which refers to the lowest temperature at which a liquid can be ignited and mixed

• Flammable substances

• Ammability of a substance

• Volatility

• Volume

Multiple Choice

Is the tendency of a liquid to vaporite

• Volatility

• Ammability

• Flammable

• Chemical changes

Multiple Choice

A phase of matter that has a definit volume and distinct shape given a certain temperature

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

A phase of matter that has a definit volume but take the shape of its container due to gravity

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

The volume dependent on its temperature and surrounding pressure.

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

When the gas gain energy through heating at very high temperature or when they absord electrical energy

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

The exact oppsite of plasma, ecisit at extremely low temperature

• Solid

• The Bose-Einstein

• Gas

• Liquid

Multiple Choice

Is considered the smallest particle of matter

• Atom

• Atomic

• Subatomic particle

• Element

Multiple Choice

Particle smaller than an atom

• Atom

• Subatomic

• Atomic

Multiple Choice

Is considered the smallest particle of matter

• Atom

• Atomic

• Subatomic particle

• Element

Multiple Choice

Found on the outermost shell. responsible for the atoms recutivity (valence electron)

• Atom

• Atomic

• Subatomic particle

• Element

Multiple Choice

Is a representation of what an atom could look based on observations and scientific evidence that describe how atoms behave.

• Atomic Model

• Atomic

• Subatomic particle

• Element

Multiple Choice

A Greek philosopher named Democritus expressed the belief that matter consists of very small, indivisible particles

• 5th CENTURY B.C

• 7th CENTURY B.C

• 4th CENTURY B.C

• 3th CENTURY B.C

Multiple Choice

A Greek words of atom and meaning ..

• Atomos

• Atomes

• Indivisible

• Divisible

Multiple Choice

When John Dalton, proposed the first atomic theory after conducing?

• 1808

• 1911

• 1897

• 1920

Multiple Choice

Father of the Modern Atomic Theory

• Chadwick

• Dalton

• Rutherford

• Thomson

Multiple Choice

In 1897 he discovered that Electrons are negetive charge particles found outside nuclues of an atom

• Rutherford

• Chadwick

• Dalton

• Thomson

Multiple Choice

In 1911 he discovered that Protons are positive charge particles found within nuclues of an atom

• Rutherford

• Chadwick

• Dalton

• Thomson

Multiple Choice

Father of Nuclear Physics

• Rutherford

• Chadwick

• Dalton

• Thomson

Multiple Choice

Discovered electrons in 18th century in his cathode ray tube experiment.

• Chadwick

• Dalton

• Rutherford

• Thomson

Multiple Choice

The electrodes contains a positive charge called

• Cation

• Anion

• Anode

• Cathode

Multiple Choice

An Ion with negative charged meaning its has more electron than protons

• Cation

• Anion

• Anode

• Cathode

Multiple Choice

The electrodes contains a negaitve charge called

• Cation

• Anion

• Anode

• Cathode

Multiple Choice

An Ion with positive charged meaning its has more protons than electrons

• Cation

• Anion

• Anode

• Cathode

Multiple Choice

Is the number of protons it is alway a whole number. It tell the number of electrons in a neutral atom.

• Atomic number

• Mass number

• Atom number

• Neutron

Multiple Choice

Gained or lost electrons leaving with a net charge

• Ions

• Iosotopes

• Ionic

Multiple Choice

The model showed you that electrons are spread in various energy levels.

• Niels Bohr's model

• Nuclear model

• Plum Pudding model

• Solid Sphere model

Multiple Choice

Chemist use Bohr's planetary model known as

• Electron configuration

• Physical configuration

• Chemical

  configuration

Multiple Choice

Describe and show the distribution of electron in each energy level located in various locations or orbits

• Electron configuration

• Physical configuration

• Chemical

  configuration

Multiple Choice

The region in the atom where electrons may be found

• Electron cloud

• Molecules

Multiple Choice

Atoms of the same element with different number of neutrons

• Ion

• Isotope

• Protons

• Electrons

Multiple Choice

Has two or more forms of the same element, cointains equal number of protons but different number of neutrons?

• Ion

• Isotope

• Protons

• Electrons

Multiple Choice

Most of the volume an atoms is made of this

• Empty space

• Electrons cloud

• Molecules

Multiple Choice

The energy of an electron and size of the orbital and its distance away from the nucleus (letter "n" is used to represent the energy level)

• Principal Quantum Number

• Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Choice

A value that is used when describing the energy levels of electron in atoms.

• Principal Quantum Number

• Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Choice

Represent the shape of the sublevel in each energy level ((letter "l" is used to represent the energy level)

• Principal Quantum Number

• Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Choice

Describer the orbital in space of an orbital of a give energy(n) and shape(l) ((letter "ml" is used to represent the energy level)

• Principal Quantum Number

• Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Choice

Describer the spin of an electrons in a orbital.

• Principal Quantum Number

• Quantum Number

• Angular Momentum Quantum Number

• Magnetic Quantum Number

• Spin Quantum Number

Multiple Choice

Wave function for an electron in an atom is called

• Atomic Orbital

• Atom Orbital

Multiple Choice

Fill up low energy level first

• Aufbaw Principle

• Orbital diagrams

• Pauli exclusion principles

• Hunds rules

Multiple Choice

Only 2 electrons per orbitals

• Aufbaw Principle

• Orbital diagrams

• Pauli exclusion principles

• Hunds rules

Multiple Choice

Electrons go their own orbital before they fill up an occupied orbital

• Aufbaw Principle

• Orbital diagrams

• Pauli exclusion principles

• Hunds rules