Ionic Bonds
Covalent Bonds
Metallic bonds
Molecules
Miscellaneous
100
What is an Ionic Bond?
The attractive force between oppositely charged ions, which form when electrons are transfered from one atom to another.
100
what is a covalent bond?
a bond formed when atoms share one or more pairs of electrons
100
what is a metallic bond?
a bond formed by the attraction between positively charged metal ions and the electrons around them.
100
waht is a electron dot diagram?
a model that shows only the valence electrons in an atom
100
the number of _________electrons in the outermost energy levelof an atom determines if an an atom will from bonds
valence
200
what is an ion?
a charged particle that forms when an atom or a group of atoms gain or lose one or more electrons
200
what is a molecule?
a group of atoms that are held together by chemical forces.
200
wehn do positively charged metal ions form?
they form when metal atoms lose electrons
200
what is hydrogen made up of?
two covalent bonded hydrogen atoms
200
waht are the 3 types of bonds?
ionic, covalent, and metallic
300
what is needed to remove electrons?
when an atom loses electrons, energy is needed to overcome the attraction of the electrons to the protons in the nucleus
300
molecules are made up of how may bonded atoms?
2
300
what are the properties of metal?
electrical conductivity, malleability, and ductility
300
what is hydrogen written as?
H2<(little two)
300
what do atoms from when they have fewer than 8 valence electrons
they from bonds
400
How do non metal atoms become negative ions?
The outermost energy level of non metal atoms is almost full
400
what is one way to represent atoms and molecules?
you represent them with a dot diagram
400
metallic bonding allows metals to conduct what?
electric current
400
molecules made up of two atoms are called?
diatomic molecules
400
when you take away an electron it becomes a ?
positive electron
500
How do ionic compounds form solids?
ionic compounds form solids by building up a three dimensional repeating pattern called a crystal lattice
500
what do covalent bond atoms form?
they form a molecule
500
why can metal be reshaped with out breaking?
it can be reshaped because metallic bonds happen in many directions
500
waht molecule could you not live without?
diatomic oxygen molecules
500
A COLUMN of elements is called a?
its called a group or family
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