Puzzle 2016120813164861

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Across:

1.	the process of adding electrons to or removing electrons from an atom or group of atoms
4.	a region in an atom where there is a high probability of finding electrons
6.	a vertical column of elements in the periodic table
7.	any atoms having the same number of protons but a different number of neutrons
10.	the total number of protons and neutrons in the nucleus of an atom
13.	an element that has properties of both a metal and nonmetal
16.	(this is the definition) an electron of an atom, located in the outermost shell (valence shell) of the atom.
19.	any of the possible energies an electron may have in an atom
20.	the center of an atom; made up of protons and neutrons

Down:

2.	a neutral subatomic particle in the nucleus of an atom
3.	an ion with a negative charge
5.	(this is the definition) the number of protons in the nucleus of an atom.
8.	a positively charged subatomic particle in the nucleus of an atom
9.	(this is the definition) the mass of an atom of a chemical element.
11.	symbol for atomic mass unit
12.	an ion with a positive charge
14.	a negatively charged subatomic particle found in the energy level of an atom
15.	the smallest particle that has the properties of an element
17.	an atom or a group of atoms that has lost or gained one or more electrons and therefore has a net electric charge
18.	the properties of elements tend to repeat in a regular pattern when elements are arranged in order of increasing atomic number
19.	the periodic table of

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Across:

1.	the process of adding electrons to or removing electrons from an atom or group of atoms
4.	a region in an atom where there is a high probability of finding electrons
6.	a vertical column of elements in the periodic table
7.	any atoms having the same number of protons but a different number of neutrons
10.	the total number of protons and neutrons in the nucleus of an atom
13.	an element that has properties of both a metal and nonmetal
16.	(this is the definition) an electron of an atom, located in the outermost shell (valence shell) of the atom.
19.	any of the possible energies an electron may have in an atom
20.	the center of an atom; made up of protons and neutrons

Down:

2.	a neutral subatomic particle in the nucleus of an atom
3.	an ion with a negative charge
5.	(this is the definition) the number of protons in the nucleus of an atom.
8.	a positively charged subatomic particle in the nucleus of an atom
9.	(this is the definition) the mass of an atom of a chemical element.
11.	symbol for atomic mass unit
12.	an ion with a positive charge
14.	a negatively charged subatomic particle found in the energy level of an atom
15.	the smallest particle that has the properties of an element
17.	an atom or a group of atoms that has lost or gained one or more electrons and therefore has a net electric charge
18.	the properties of elements tend to repeat in a regular pattern when elements are arranged in order of increasing atomic number
19.	the periodic table of

© 2016 PuzzleFast.com, Noncommercial Use Only