Atomic Structure
where can an electron be found
shells/orbitals
What does the middle section of the periodic table consist of.
Transition metals
When an electron is attracted to the nuclei of two atoms at the same time
covalent bond
Is a nuclear reactor a controlled or uncontrolled reaction.
controlled
What is a mol
A counting unit
what type of charge does a proton have
positive
Which element is Ag
Silver
What is the attraction between a positive ion and a negative ion.
Ionic Bond
what did Marie Cury do for science.
radium and polonium and the isolation of radium
Define Stoichiometry
The study of the quantaitve aspects of chemical reactions
What was the first model of an atom and who created it.
Dalton and the atom was represented as a circle.
Who created the first periodic table.
Dmitri Mendeleev
What is a nonpolar covalent bond
Where the sharing of electrons is equal
Define nuclear fusion.
When nuclei combine to produce a nucleus of greater mass.
What is the number of atoms in .500 Mole of Al.
3.01x1023 Al atoms
How many protons are in Cu
29
What type of elements are touching the zigzag line on the periodic table.
Metalloids.
What is a Cation
A positively charged ion
what is the mass of Mn-56 with a half life of 2.6h and a 1.0g sample of the isotope at the end of 10.4 hours
10.4/2.6=4
1 1/4
1/2 1/8
1/16g
how many moles are in 44.8 liters
2
What was Rutherfords conclusion about atoms
Atoms are moslty empty space.
What gets bigger as you go down a group of elements
Atomic Number
Write the ion for Al
Al3+
What is neutron Moderation
the process that slows down the neutrons so the reactor fuel captures them and to continue the chain reaction.
What is the formula mass for C6H12O6
180.15768