Electrons
Nucleus
Identity
Isotopes and Ions
Potpourri
100
The maximum number of electrons in the second energy level of an atom.
What are electrons?
100
Which scientist discovered nucleus.
What is Rutherford?
100
The area electrons orbit in.
What is electron cloud?
100
An element that has a different number of neutrons and is usually radioactive.
What is isotopes?
100
The smallest particle in all of matter.
What is atom?
200
The maximum number of electrons in the second energy level of an atom.
What is 8?
200
largest part of an atom
What is nucleus?
200
The number placed above the element’s symbol.
What is atomic number?
200
The scientist who discovered isotopes.
Who is Frederick Soddy?
200
Anything that takes up space.
What is matter?
300
The likely location of the negatively charged particle in an atom.
What is electron cloud?
300
The two parts of the nucleus.
What is proton and neutron?
300
The name of the electrons that don’t fill up their energy level.
What is valence electrons?
300
Two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei.
What is isotope?
300
The scientist who discovered the atom.
Who is J.J. Thomson?
400
The electron configuration is 2,8,4.
What is silicon?
400
The element with 12 protons and 12 neutrons.
What is magnesium?
400
The column of stable elements on the far right side of the periodic table.
What is noble gases?
400
The type of ion 2,8,18,36 are in.
What is the number of electrons in a positively charged ion?
400
The atomic mass of Nitrogen (the atomic number is 7).
What is 14?
500
the size of an electron compared to a proton or neutron?
What is 1/2000th?
500
What scientists use to collide particles to study fundamental atomic particles.
What is particle collider?
500
The element with the electron configuration of 1s22s22p63s23p4.
What is sulfur?
500
An isotope of uranium that makes up about 1.7 percent of uranium in the world.
What is U235?
500
The state elements are in when their outer energy level is full.
What is stable?
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