The chemical properties of an element depend on the number of these.
What are VALENCE ELECTRONS
100
A chemical bond in which 2 atoms share a pair of valence electrons.
What is a COVALENT BOND.
100
A compound made from only 2 elements is this type of compound.
What is a binary compound.
100
Instead of writing out all the zeroes in numbers, you can use a shortcut which makes VERY large or very small numbers easier to work with.
What is Scientific Notation.
100
James Bradley's middle name.
What is David. If you didn't know it, well, you know it now!
200
This model of an atom has DOTS representing a valence electron.
What is an ELECTRON DOT DIAGRAM
200
When 2 atoms share ONE pair of electrons, what type of bond is it.
What is a SINGLE BOND.
200
A covalently bonded group of atoms that has a + or - charge and acts as a unit is called this. ("many" or poly is part of the answer)
What is a polyatomic ion.
200
The ratio of an object's mass to its volume.
What is DENSITY. D = M/V
200
He dressed as an Obama Want-a-be on Halloween and asked for "change".
Who is Steven H.
300
An ion with a negative charge.
What is an anion.
300
A neutral group of atoms that are joined together by one or more covalent bonds.
What is a molecule.
300
"Mono, di, tri, tetra, pent, hexa,..." are all used in naming compounds. What are they?
What are Greek prefixes.
300
In this type of mixture, the parts of the mixture are noticeably different from one another.
What is a heterogeneous mixture.
300
He often refers to himself as NINJA.
Who is Cuyler.
400
An ion with a positive charge.
What is a cation.
400
When 2 atoms share two pairs of electrons what are they called?
What is a DOUBLE BOND.
400
A mixture of two or more elements, at least one of which is a metal.
what is an alloy.
400
A heterogenous mixture that separates into layers over time.
What is a suspension.
400
If it were not for B.B. guns and hanging out with his friends, he would be totally bored!
Who is Andrew K.
500
The force that holds atoms or ions together as a unit is called a chemical bond. Another force (formed when electrons are transferred from one atom to another) is the one that hold cations and anions together.
What is an ionic bond.
500
A covalent bond in which electrons are NOT shared equally is said to be this type of bond.
What is a POLAR COVALENT BOND.
500
Solids whose particles are arranged in a lattice structure.
What is a crystal.
500
The tendency of a liquid to keep from flowing - to resist.
What is viscosity.
500
He is a like a grumpy bear in the morning but by afternoon he is a laughing hyena.