Periodic Table
Au
How is matter held together?
Chemical bonds
What is an atom?
The basic unit of a chemical element.
What is the atomic weight of silver?
107.86
What is the Atomic Number for Helium?
2
Why do we use the Periodic Table?
to quickly refer to information about an element, like atomic mass and chemical symbol.
How is a chemical change different from a physical change?
Chemical changes are those where one or more substances are combined to produce a new substance.
What is an element?
A part or aspect of something abstract, especially one that is essential or characteristic.
What is the atomic weight of Copper?
63.54
What is the Atomic number for Hydrogen?
1
Which are the first 5 elements?
Hydrogen, Helium, Lithium, Beryllium, Boron,
What different types of bonding exist?
Ionic bonding. Covalent bonding. Metallic bonding.
What is the difference between atoms and elements?
Elements are pure substances with specific properties. Atoms are the smallest units of elements that still retain the element's properties
What is the atomic weight of Gold?
196.96
What is the Atomic number for Silver?
47
Who is the father of the periodic table?
Dmitri Mendeleev
Are two atoms of the same element identical?
Two atoms of the same chemical element are typically not identical.
What is the difference between a compound and a molecule?
A molecule is a group of two or more atoms held together by chemical bonds. A compound is a substance which is formed by two or more different types of elements which are united chemically in a fixed proportion
What is the atomic weight of Oxygen?
15.99
What is the Atomic number for Oxygen?
8
How many elements are on the Periodic Table?
118
What is the pH value of distilled water?
Pure distilled water generally has a pH of 7.
How many elements are there?
118 Elements
What is the atomic weight of Helium?
4.00
What is the Atomic number for Copper?
29