Show:
Valence Electrons
Ions
Covalent Bonds
Metallic Bonds
other
100
What are valence electrons ?
The outermost electron in an atom
100
What is an ion ?
Charged particle that forms when an atom loses or gains electrons
100
What is a covalent bond ?
A bond when atoms share electrons
100
what is a metallic bond?
it is a bond formed by the attraction between positively charged metal ions and the electrons around them.
100
do ionic compounds have high or low melting points?
high
200
How many valence electrons are in group 5 ?
There are 1 or 2 valence electrons in group 5
200
What is an ionic bond ?
it is when electrons are transferred from one atom to another
200
Do covalent bonds have low melting points ?
Yes
200
what allows metals to be reshaped without breaking?
metallic bonding.
200
what is a crystal lattice?
it is the regular pattern in which a crystal is arranged.
300
Can elements bond if they're outermost shell of electrons are full ?
no
300
When you lose electrons the is the atom + or - ?
Negative
300
Why do covalent bonds form ?
Atoms want they're outermost shell full
300
what properties does metallic bonding give metals?
conductivity, malleability, and ductility
300
what determine the number of dots surrounding an electron dot diagram?
the number of valence electrons that atom has.
400
How do you find the valence electrons from group 13 to 18 ?
Take the group number & subtract by 10
400
How are negative ions formed ?
When an atom gains electrons
400
the particle that forms when atoms covalently bond is called what?
a molecule
400
when metal is bent, positively charged atoms are forced together. what happens to the electrons?
they move around and between the ions.
400
why aren't elements in group 18 reactive?
their valence is full.
500
How much valence electrons are in Carbon ?
4
500
What is the charge of an atom that lost 3 electrons ?
Positive 3
500
what is water made of?
it is made up of two hydrogen atoms and one oxygen atom.
500
what does ductility mean?
it is the ability to be drawn into wires.
500
what is sucrose made of?
carbon, hydrogen, and oxygen atoms