Science (Formation of Ionic and Covalent Bond)

Question 1

are the electrons found in the outermost shell of an atom. These are the electrons that are lost or gained in the process of forming ions. The _________ of an atom is reflected in its group number

Answer 1

Valence Electrons

Question 2

is an atom or molecule with a net electrical charge

Answer 2

Ions

Question 3

are positively charged (+) ions. They are formed when a metal loses its electrons

Answer 3

Cation

Question 4

are negatively charged (-) ions. They are formed when a nonmetal electrons.

Answer 4

Anion

Question 5

refers to the tendency of atoms to prefer to have eight electrons in thevalence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds.

Answer 5

Octet Rule

Question 6

the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom

Answer 6

Oxidation Number

Question 7

Using this method, the number associated with the charge of the first ion is assigned as the subscript of the second ion. The number of the charge on the second ion is assigned as the subscript of the first ion.

Answer 7

CRISS CROSS METHOD

Question 8

is a representation of the valence electrons of an atom that uses dots around the symbol of the element. The number of dots equals the number of valence electrons in the atom.

Answer 8

Lewis electron dot diagram

Question 9

a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.

Answer 9

Chemical Bond

Question 10

-It is a bond formed between ions with opposite charges (+) and (-).
-There is a transferring of electrons from one atom to another.
-Metals lose electrons to match the number of valence electrons of their nearest noble gas
-Positive ions form when the number of electrons are less than the number of protons

Answer 10

IONIC BOND

Question 11

-It is formed by the sharing of electrons between two atoms with identical or relatively close electronegativity values.
-There is no loosing or gaining of electrons.
-There are two kinds of Covalent Bond
a. Non-Polar Covalent Bond
b. Polar Covalent Bond

Answer 11

COVALENT BOND

Question 12

form between two atoms of the same element, or between atoms of different elements that share electrons more or less equally

Answer 12

Nonpolar covalent bonds

Question 13

existswhen atoms with different electronegativities share electrons in a covalent bond.There is unequal sharing of electrons between them.

Answer 13

Polar Covalent Bond

Question 14

If it leaves a dot unappreciated

Answer 14

Polar Covalent Bond