Easy
Where are atoms located
everywhere
is the overall atom particle charged or uncharged?
not charged
How many layers does the first oribital layer hold in the electron cloud?
2
give an example of a metal
lithium, sodium ,etc
Put 25.6g of Fe into moles
0.458 moles
what makes up atoms. How many parts?
protons, neutrons, electrons, 3
What makes up the nucleus of the atom?
protons and neutrons
Name the three different familes of elements on the periodic table
nonmetals
metals
metalloids
Name the orbital layers in an electron cloud
spdf
What is the SI base unit used to measure the amount of a substance whose number of particles is the same as the number of atoms of carbon in 12g of carbon – 12?
Moles
atoms are the building blocks for what?
elements
What is an isotope
slight variation in an element. Different number of neutrons
Who is Democritus, what did he do?
suggested universe is made up of atoms
give me an example of a nonmetal
neon, krypton, etc
What is Avagadro's Constant?
6.022x10^23 / mol
What is a group on the periodic table?
You can convert grams to what?
Moles
Who is John Dalton? What did he do?
•proposed his own atomic theory; some parts still true today (backed by scientific evidence)
Give me an example of a transition element
•Gold, silver, platinum, mercury, etc.
Convert 123.5 moles into grams
6896.98 grams
What is a period on the periodic table?
Goes horizontal
What is a valence electron?
•Electrons in the outermost energy level of an atom are called valence electrons
Who is Niels Bohr? What did he do?
•Bohr suggested that electrons in an atom move in set paths around the nucleus much like the planets orbit the sun in our solar system.
Give me an example of a synthetic element?
•Technetium, promethium, americium, etc.
What accounts for 28% of the Earth's crust?
Silicon