Atomic Models
The scientist who performed the now-famous gold-foil experiment and developed the nuclear model of the atom
Who was Rutherford?
This type of element tends to be brittle when hammered
What are nonmetals?
The subatomic particle that defines the type of element
What are protons?
The approximate atomic mass of a Silver isotope with 61 neutrons
What is 108 amu?
The number of grams in 1 mol Argon
What is 39.948 g?
The scientist who discovered that the cathode ray tube contains a beam of negatively-charged particles and proposed the plumb pudding model of the atom.
Who was Thomson?
A group on the periodic table that includes Bromine
What is a halogen?
The subatomic particles that are negatively charged
The mass number of a Potassium atom with 20 neutrons
What is 39?
The number of atoms in 1 mol Argon
What is 6.022 x 1023 atoms?
A scientist who proposed that electrons were only able to inhabit specific energy levels since free-floating electrons would eventually smash into the nucleus.
Who was Bohr?
The scientist who made a table of the known elements ordered by increasing atomic mass and arranged according to similar properties that led to his prediction of many unknown elements and their properties.
Who was Mendeleev?
Subatomic particles that contribute the majority of an atom's mass
What are protons and neutrons (nucleons)?
This number is found in the hyphen notation of an isotope
What is the mass number?
The formula mass of CH4
What is 16.043 amu?
The scientist who proposed the quantum mechanical model of the atom that describes electrons occupying a probability cloud around the atomic nucleus.
Who was Schrodinger?
A type of element on the periodic table that includes Silicone
What is a metalloid / semimetal?
According to the plum pudding model, the positive charge of the atom is spread out and weak, and would have caused this to happen to the alpha particles in the gold-foil experiment
What is ALL going through the foil?
The number of protons, neutrons, and electrons in a neutral 45Sc atom
What has 21 protons, 24 neutrons, and 21 electrons?
The molar mass of C6H12O6
What is 180.156 g/mol?
The scientist who proposed the uncertainty principle that we cannot accurately predict both the velocity and location of certain particles such as electrons.
Who was Heisenberg?
Elements with similar properties tend to be within the same one of these
What is a group?
Most of the alpha particles in the gold-foil experiment went through the gold since atoms are primarily composed of this
What is empty space?
In the nuclear symbol of an atom, this number is found in the bottom left of the element symbol
What is the atomic number?
The number of copper atoms in 6.3546 x 101 g copper