Lesson 3
ion
An atom or molecule bearing an electrical charge is called a(n) _____
positive
An ion is (positive/negative) if if the atom contains fewer electrons than protons
negative
An ion is (positive/negative) if the atom contain more electrons than protons
charged
Ions differ from atoms in that they are _____
nonmetals
_____ tend to gain electrons, thereby becoming anions.
metals
_____ tend to lose electrons, and therefore become cations.
anion
a(n) (cation/anion) is represented with a superscript minus on the right of the element symbol
cation
a(n) (cation/anion) is represented with a superscript plus on the right of the element symbol
cations
positively charged ions are called _____
false
true/false: a cation is always bigger than its atom
true
true/false: a cation is always smaller than its atom
true
true/false: an anion is always bigger than its atom
false
true/false: an anion is always smaller than its atom
ion
A(n) _____ has a different number of electrons than the element
isotope
A(n) _____ has a different number of neutrons than the element
noble gases
The _____ are the most stable (least reactive) elements on the periodic table, and therefore do not form ions
anions
negatively charged ions are called _____