The Periodic Table
What does the Periodic Table show?
Which Sub-Atomic Particle has a neutral charge?
Neutrons
How many Valence Electrons does Hydrogen have?
1
What is the large group of metals in the middle of the Periodic Table that we "skip" over when counting the columns of the Periodic Table?
Transition Metals
How many electrons does the first ring have?
How many elements are currently on the Periodic Table?
118
Which Sub-Atomic Particle has a positive charge?
Protons
Magnesium is in the 3rd row. How many Shells (rings) does it have?
3
What kind of bond is made when two or more atoms share Valence Electrons?
A Covalent Bond
Which element has 3 Valence Electrons and 4 shells?
Gallium
In modern times, how is the Periodic Table organized?
Increasing order of Atomic Number
Which Sub-Atomic Particle has a negative charge?
Electrons
If Oxygen is in the 6th column on the Periodic Table, how many valence electrons does it have?
6 valence electrons
What are Valence Electrons?
The electrons on the outer-most shell (ring) of an atom
What is the maximum number of Valence Electrons for any element?
8
When the Periodic Table was originally created, how were the elements organized?
Increasing order of Atomic Mass
What does the Atomic Number show?
The number of Protons/Electrons in the atom
What do the rows of the Periodic Table tell you?
How many shells (rings) an element has
Which group of elements has their own column on the periodic table and already each have 8 valence electrons?
The Noble Gases
How many Valence Electrons are almost every element trying to achieve?
8
Who created the Periodic Table of Elements?
Dimitri Mendeleev
What is the nucleus of an atom?
The center of the atom where the Protons and Neutrons can be found
What do the columns of the Periodic Table tell you?
What is Atomic Mass?
The number of Protons and Neutrons combined in the Nucleus of the atom. The size of the atom.
Why is Helium in the 8th Column on the Periodic Table, even though it only has 2 Valence Electrons?
The first shell (ring) only needs 2 Valence Electrons to be complete. The 8th column is the Noble Gases, which are special because they have the maximum number of Valence Electrons for their shell