Physical Science Ch. 17

The abbreviation of an element

A. atomic symbol
B. proton
C. quark

Smallest piece of matter that still has the properties of the element

A. quark
B. atom
C. proton

Center of the atom

Positively charged particle in the nucleus

A. electron
B. neutron
C. proton

Negatively charged particle outside of the nucleus

A. electron
B. neutron
C. proton

Particles without any charge in the nucleus

A. electron
B. neutron
C. proton

Particles found in the nucleus of an atom

The region contatining electrons outside the nucleus

Smaller particles that make up protons and neutrons

A. proton
B. quarks
C. nucleus

Sixth quark that was the last and hardest quark found

A. top quark
B. Tevatron
C. electron

Quarks can be produced by bombarding _____________ with protons.

A. protons
B. electrons
C. neutrons

Shows electrons traveling in specific energy levels around the nucleus of protons and neutrons

1st level of electron cloud

A. 8 electrons
B. 2 electrons
C. 18 electrons

2nd level of electron cloud

A. 8 electrons
B. 2 electrons
C. 18 electrons

3rd level of electron cloud

A. 8 electrons
B. 2 electrons
C. 18 electrons

The mass of an atom

A. mass number
B. atomic mass
C. atomic number

Unit of measurement for atomic particles

A. atomic mass unit (amu)
B. watts

Number of protons in an atom

A. mass number
B. atomic mass
C. atomic number

The sum of the number of protons and neutrons in the nucleus of an atom

A. mass number
B. atomic mass
C. atomic number

Atoms of the same element with different number of neutrons

A. quarks
B. isotopes
C. elements

Carbon-12 Carbon-14

Same number of protons - different number of ___________

The weighted average mass of all known isotopes of an element

A. average atomic mass
B. mass number
C. atomic number

Orderly arrangement of elements

First periodic table created by Mendeleev was in order of increasing

A. atomic number
B. mass

Modern periodic table created by Moseley is in order of increasing

A. atomic number
B. mass

The vertical columns in the periodic table made of elements with similar properties

A. groups
B. periods

The identity of an element is determined by the number of _________.

A. protons
B. electrons
C. neutrons

The horizontal rows of elements in the periodic table

A. groups
B. periods

Elements on the left side of the stair step line

A. nonmetals
B. metalloids
C. metals

Elements on the right side of the periodic table

A. nonmetals
B. metalloids
C. metals

Elements that have 3 or fewer electrons in the outer energy level are classified as ________.

A. metals
B. nonmetals

Elements along the stairstep line of the periodic table

A. nonmetals
B. metalloids
C. metals

Elements that have metallic properties

A. nonmetals
B. metalloids
C. metals

Elements that have nonmetallic properties

A. nonmetals
B. metalloids
C. metals

nonmetals

Elements that have properties of both metals and nonmetals

A. nonmetals
B. metalloids
C. metals

Drawn representation of an element that tells you the number of valence electrons and its symbol

The mass of a _____________ is about equal to the mass of a proton

A. proton
B. neutron
C. electron

Al is the symbol for

C is the symbol for

Na is the symbol for

O is the symbol for

H is the symbol for

Cl is the symbol for

Ca is the symbol for

Fe is the symbol for

Poor conductors of heat and electicity

A. metals
B. nonmetals

Seven electrons in the outer energy level is characteristic of a

A. metal
B. nonmetal

The atomic masses of the elements are decimal numbers because of the existence of ________.

A. quarks
B. protons
C. isotopes

As you move from left to right in a row of the periodic table, metallic properties

A. increase
B. decrease

Dot diagrams are used to represent
outer ___________

A. protons
B. electrons
C. neutrons

A certain atom has 15 protons, 15 electrons, and 12 neutrons, its mass number is _____________

The _____________ is used to accelerate protons in the study of subatomic particles.

A. top quark
B. termanite
C. Tevatron

Elements in groups 3 through 12 are called _________

A. transition elements
B. metalloids
C. noble gases

A chemical symbol represents the _______ of an element.

A. atomic number
B. name
C. state of matter