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Guide To The Periodic Table
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Guide To The Periodic Table
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25 Questions

1.
An atom or group of atoms that has gained or lost one or more electrons - thus acquiring a charge (negative or positive).

2.
The number of protons in an atom which uniquely identifies an element

3.
total weight of protons and neutrons

4. Number of periods in the periodic table

5.
Elements with properties that fall between those of metals and nonmetals.

6.
The energy required to remove an electron from an atom in its gaseous state.

7.
They are the third group and period 6. Their elements atomic numbers vary from 57-70.

8.
Negatively charged subatomic particles.

9.
Positively charged subatomic particles found in the atomic nucleus.

10.
a diagram of an atom which includes all protons - neutrons - electron shells and electrons

11.
Elements that form a bridge between elements on the left and right sides of the periodic table. They are group 3-12.

12. Number of groups/families on the periodic table

13.
Electrons on the outermost energy level of an atom

14.
They are group 17. Contains nonmetals and 7 valence electrons in it's outermost energy level. Very reactive.

15.
They are the third group. They are composed of 15 metals and their atomic numbers vary from 89 to 103. They are radioactive.

16.
Group 18: Nonreactive family of nonmetals; 8 valence e- (full octet). All are gases at room temp and are extremely unreactive

17. Elements that are good conductors of heat and electric current.

18.
The sum of the number of neutrons and protons in an atomic nucleus.

19.
The subatomic particles located in the nucleus that have no charge.

20. smallest atom

21. Symbol the abbreviation of an elements name; 1 or 2 letters - first letter is always capitalized - second is never capitalized

22.
The arrangement of electrons in the orbitals of an atom.

23.
A chart that organizes the elements by their chemical properties and increasing atomic number. There are a total of 18 groups.

24.
The ability of an atom of an element to attract electrons when the atom is in a compound.

25. unstable elements found along the lower periods