Discovered the positive nucleus by performing the gold foil experiment
Who is Rutherford (Ernest Rutherford)?
100
This quantity is equal to the number of electrons in a neutral atom as well as the atomic number
What is protons (number of protons)?
100
The size of an ion
What is ionic radius?
100
This is the number of protons contained in an atom of Neon.
What is 10?
200
This element has the lowest ionization energy out of Ba, Y, and Ti.
What is Ba?
200
Known for his work with gases, this man was the FIRST to tell us that matter is neither created nor destroyed, but it may change forms - a new law at the time.
Who is Lavoisier (Antoine Lavoisier)?
200
Letter(s) used to represent elements - the first one is always capitalized
What is element symbol?
200
Half the distance between the nuclei of two bonded atoms of the same kind
What is radius (atomic radius)?
200
A row on the periodic table is also known as this.
What is a period?
300
This has a bigger radius: a Cu atom or a Cu +2 ion.
What is a Cu atom?
300
His theory of the atom has the electrons orbiting the nucleus as if they were planets.
Who is Bohr (Niels Bohr)?
300
The amount of protons and neutrons in the nucleus of an atom
What is the mass number?
300
An atoms ability to attract electrons when bonded
What is electronegativity?
300
This is the number of electrons in a neutral atom of Uranium.
What is 92?
400
This element one of the smallest on the table that does not willingly let go of its electrons, but would rather take electrons from others. The so-called "bully" of the periodic table.
What is fluorine?
400
This man used probability and lots of math to locate electrons in their 'clouds'.
Who is Schrodinger (Edwin Schrodinger)?
400
The number of protons defines this quantity, and therefore the type of element present
What is atomic number?
400
Atoms with the same atomic number, but different mass numbers
What are isotopes?
400
This group on the periodic table is considered inert, because the elements involved do not react with others.
What are the noble gases?
500
This atom has the highest electronegativity out of N, P, and Ge.
What is N (nitrogen)?
500
Using cathode ray tubes, this man was able to discover tiny negatively charged particles contained within atoms. Suggesting that atoms are no longer indivisible spheres.
Who is Thomson (J. J. Thomson)?
500
An element has an atomic number of 13 and a mass number of 28. This is the number of neutrons.
What is 15?
500
The energy is takes to remove one electron from a neutral atom
What is ionization energy?
500
This is the most reactive group on the periodic table due to its high electronegativities.