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Table Find
Vocabulary
Scientists
Parts of An Atom
Vocabulary
100
This is the symbol for Promethium
What is Pm
100
The number of protons in the nucleus of the atom.
What is the atomic number.
100
This was the first person to come up with the idea of atoms and gave rise to the word atom from atomos.
Who is Democritus.
100
This is the number of protons Vanadium has.
What is 23.
100
Particles of the nucleus that have no charge.
What is a neutron.
200
This is the atomic mass for Indium.
What is 114.8
200
The center of the atom that is extremely dense, and positively charged.
What is the nucleus.
200
This scientist discovered the electron.
Who is JJ Thompson.
200
This element has 16 electrons.
What is sulfur.
200
Negatively charged particles found in every atom outside of the nucleus.
What is an electron.
300
This is the name of the element with the symbol Sb.
What is antimony.
300
The sum of protons and neutrons in an atom.
What is the mass number.
300
This scientist came up with the atomic theory.
Who is Dalton.
300
List the three parts of the atom and their charges.
What is proton(+), neutron(neutral), and electron(-).
300
Smallest particle into which an element can be divided and still be the same substance.
What is the atom.
400
This is the group number of the "Coinage Metals."
What is 11.
400
The area where electrons are more likely to be found.
What is the electron cloud.
400
This scientist discovered the atom was mostly empty space with his gold foil experiment.
Who is Ernest Rutherford.
400
This element has 157 neutrons.
What is Hassium(Hs)
400
The idea that chemical and physical properties are periodic functions of their atomic numbers.
What is periodic law.
500
These are the two elements listed as liquids on the periodic table.
What is mercury & bromine.
500
Having a regular, repeating pattern.
What is periodic.
500
This scientist discovered that electrons behave much like planets in the solar system, revolving around the nucleus.
Who is Neils Bohr.
500
This is how many neutrons Holmium(Ho) has.
What is 98.
500
Atoms that have the same number of protons but different numbers of neutrons.
What is isotopes.