What can you use to figure out how many valence electrons an atom has?
You can look at the groups in a periodic table.
100
What do ionic bonds form between?
It forms between charged atoms(ions).
100
When do covalent bonds form?
They form when atoms share their electrons with each other.
100
What is a metallic bond?
It is a bond formed by the attraction between positively charged metal ions and the elctrons around them.
200
What is a chemical bond?
The force of attraction that holds the atoms in the bond together.
200
How does an atom become a positive ion?
It becomes a positive ion when another atom comes and takes away its elctrons.
200
Do ionic bonds form between metals and nonmetals? True or false.
True.
200
Do covalent bonds form between two metals? True or False.
False, they form between two nonmetals.
200
Are the electrons free to move around in a metallic bond? True or False.
True.
300
What does chemical bonding depend on?
It depends on the number of valence electrons in an atom.
300
How does an atom become a negative ion?
By taking more elctrons from other atoms.
300
What are some properties of substances formed with ionic bonds?
The substances are hard and brittle at room temperature, and they have high melting points.
300
Are covalent bonds a weak or strong bond?
They have a weak bond.
300
Describe the movement of electrons throughout a metal.
They are like a sea of electrons being shared with other atoms. The nucleus just stays in one place, while the electrons are "swimming" around everywhere.
400
What kind of outer ring does an atom want to have?
It wants to have a full outer ring, so it can be "happy".
400
How many valence electrons are in Boron?
Boron has three valence electrons.
400
Does an ionic bond formed between substances, have a weak or strong bond.
They have a strong bond.
400
What are some properties of covalent bonds?
They have low melting and boiling points, and they are brittle in their solid state.
400
What are the three properties given to the substances with metallic bonding?
Three properties include electrical conductivity, malleablility, and ductility.
500
What can an atom do to have a full outer ring?
The atom can take, lose, or share electrons with other atoms.
500
How many valence electrons are in Magnesium?
Magnesium has two valence electrons.
500
What do ionic bonds form once they are bonded?
They form crystal lattices.
500
What is a molecule?
A molecule is a group of atoms held together by covalent bonds.
500
What are the definitions of malleability and ductility?
Malleability is the ability to be rolled or pounded. Ductility is the ablility to be drawn into wires.