Grade 11 Chemistry Flashcards

Flashcards for Grade 11 Chemistry, covering vocabulary from Chapters 5-8, including the periodic law, chemical bonding, chemical formulas, and chemical reactions.

The organization of elements is called the __.

periodic table

__ patterns are referred to as periodic.

Repeating

__ arranged the elements in order of increasing relative atomic mass.

Mendeleev

__ arranged the elements in order of increasing atomic numbers.

Moseley

The modern periodic table arranges the elements by both and .

atomic numbers, properties

Argon, Helium, Krypton, and Xenon are examples of __.

noble gases

Radon was discovered by __.

Friedrich Ernst Dorn

Noble gases are a group of __ elements found in Group 18.

unreactive

The __ row of the f block contains elements that are all radioactive.

actinides

The __ row of the f block contains shiny metals similar to Group 2 elements.

lanthanides

The periodic table is divided into the s, p, d, and __ blocks.

f

The elements of Group 1 are known as the __.

alkali metals

The elements of Group 2 are called the __.

alkaline earth metals

The p-block elements together with the s-block elements are called the __.

main-group elements

An __ is the way in which electrons are arranged in an atom.

electron configuration

A __ is used to represent valence electrons in an atom.

dot diagram

A __ is a mutual electrical attraction between the nuclei and valence electrons of different atoms.

chemical bond

__ are the electrons available to be lost, gained, or shared in the formation of chemical compounds.

Valence electrons

When atoms lose or gain electrons, they form __.

ions

A negative ion is called an __.

anion

A positive ion is called a __.

cation

Chemical bonding that results from the electrical attraction between positive and negative ions is called __.

ionic bonding

In __, a bond forms from the sharing of electron pairs between two atoms.

covalent bonding

The __ gives the number of each type of atom in a single molecule.

chemical formula

Monatomic cations are identified by the name of the __.

element

Monatomic anions are identified by dropping the end of the element’s name and adding the suffix __.

-ide

A __ is composed of exactly two elements.

binary compound

__ are composed of a single atom.

Monatomic ions

__ are composed of two or more atoms per ion.

Polyatomic ions

__ is the sum of the average atomic masses of a compound’s elements.

Formula mass

If the particle is a molecule, then the formula mass is also called the __.

molecular mass

__ tells you by mass what percent of each element is present in a compound.

Percentage composition

A __ is when one or more substances interact and produce new substances.

chemical reaction

A __ represents a chemical reaction using symbols and formulas.

chemical equation

The original substances in a chemical reaction are called __.

reactants

The new substances formed in a chemical reaction are called __.

products

Energy release, gas formation, precipitate, and color change are all signs of a __.

chemical reaction

In a chemical reaction, the total mass of the reactants equals the mass of the products due to the __.

Law of Conservation of Mass

In a __, reactants and products are written down in words.

word equation

In __, two or more substances combine to form a new compound.

synthesis reactions

In __, a single compound produces two or more simpler substances.

decomposition reactions

In __, one element replaces another.

single-displacement reactions

In __, the ions of two compounds exchange places.

double-displacement reactions

In __, a substance combines with oxygen, releasing energy.

combustion reaction