Charges
Understanding the table
The Bohr Model
Element families
Element Find
100
The particle found in the electron cloud that has an negative charge.
What is an electron?
100
This is shown at the top of an element tile and expresses the number of protons.
What is the atomic number?
100
The first family of elements, contains Hydrogen.
What is alkali metals?
200
The particle that has no charge and only accounts for mass in an atom.
What is a neutron?
200
This is shown at the bottom of an element tile and expresses the number of protons and neutrons combined. This is an average.
What is the atomic mass?
200
The number of electrons able to be held in the second, third, etc. energy levels.
What is 8 electrons?
200
The second group of families, contains Calcium.
What is the alkaline earth metals?
200
11 protons, 12 neutrons, 11 electrons.
What is sodium?
300
The charge of atoms with an equal number of protons and electrons.
What is neutral?
300
The classification that organizes elements by valence electrons.
What is groups or families?
300
The electrons in the outermost shell of the atom.
What is valence electrons?
300
The families that range from group 3-12, all metals.
What are the transition metals?
300
Group 2, period 4, 20 protons.
What is calcium?
400
The charge of a neutral atom that gained 2 electrons.
What is a -2 charge?
400
The classification that organizes elements by the number of energy shells or layers.
What is rows or periods?
400
The part of an atom where most of the mass is found.
What is the nucleus?
400
Group 17, very reactive, almost all metals.
What is the halogens?
400
Alkali metal, 55 protons.
What is Cesium?
500
The charge of an atom that lost 4 electrons.
What is a +4 charge?
500
The organization in the table that represents an element by one or two letters.
What is a chemical symbol?
500
The part of the atom where most of the volume is found.
What is the electron cloud?
500
The final group on the periodic table, not at all reactive, all nonmetal, contains helium.
What are the noble gases?
500
Halogen, period 6.
What is Radon?
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