Covalent Bonding
Covalent bonds form between
What are two nonmetals?
Most elements on the periodic table are
What are metals?
Valence electrons are found in this shell
What is the outer shell?
Ionic bonds form between a ___ and a ___
What is a metal and a nonmetal?
This is the number of protons in an atom
What is atomic number?
Covalent bonding involves ___ electrons
What is sharing?
These elements are poor conductors and often gases
What are nonmetals?
An atom that gains or loses electrons becomes a
What is an ion?
Ionic bonding involves the ___ of electrons
What is transfer?
Rows on the periodic table are called
What are periods?
H₂O is an example of this type of compound
What is covalent?
Elements with properties of both metals and nonmetals
What are metalloids?
A positively charged ion is called
What is a cation?
NaCl is an example of this type of compound
What is an ionic compound?
Columns on the periodic table are called
What are groups or families?
A molecule is made when atoms are joined by
What are covalent bonds?
Silicon is classified as a
What is a metalloid?
A negatively charged ion is called
What is an anion?
Opposite charges ___ each other
What is attract?
This element has the symbol Na
What is sodium?
Covalent compounds usually have ___ melting points
What are low?
Metals tend to ___ electrons
What is lose?
Group 1 elements form ions with what charge?
What is +1?
Ionic compounds usually have ___ melting points
What are high?
Elements in the same group have the same number of
What are valence electrons?