Atomic Structure
This subatomic particle is neutral, or has no charge.
What is a neutron
This civilization came up with the idea of the atom.
Who are the greeks?
helium
p - 2, n - 2, e - 2
This is the electron configuration of flourine.
What is 1s2 2s2 2p5?
Atoms with the same number of protons and a different number of neutrons, such as carbon-12, carbon-13, and carbon-14 are called this.
What are isotopes?
The number of protons gives us this value, which is unique for each element and determines its identity.
What is the atomic number?
He believed that atoms were different sizes, but could not be broken into smaller pieces.
Who is Dalton?
Flourine
p - 9,n -10,e - 9
987000000 in scientific notation & number of significant figures present
What is 9.87x10^8 & 3 sig figs?
These two subatomic particles must be equal in number in order to make the atom neutral.
What are electrons & protons?
He claimed that electrons were found on fixed orbits outside of the nucleus.
Who is Bohr?
Phosphide (P-3)
p - 15, n - 16, e - 18
This is why the atomic mass listed on the periodic table is not a whole number.
What is because it is the weighted average of all of the masses of the isotopes of a given element?
The two sub-atomic particles that make up the nucleus.
What are protons & neutrons?
Thompson used this famous experiment to show the presence of electrons.
What is the cathode ray experiment?
Chlorine - 37
p - 17,n - 20,e - 17
The number of electrons a single orbital can hold.
What is 2?
This particle is 1/1837 the a mass of a proton
What is an electron?
Rutherford showed the presence of a positively charged nucleus through the findings of this experiment.
What is the gold foil experiment?
This is the number of valence electrons in Chlorine
What are 7?
Noble gas configuration of Bismuth
What is [Xe] 6s2 4f14 5d10 6p3 ?
The average atomic mass for silicon is 28.03 amu. Based on the percent abundances of its naturally occurring isotopes, what is the natural abundance of Si-28: Si-28: ?% Si-29: 1.5% Si-30: 0.5%
What is 98%