Periodic Table
How many elements are in the periodic table?
The periodic table has 118 elements.
How are elements classified?
Elements are classified by their atomic number.
What are various types of mixtures?
Various types of mixtures are suspension mixture, colloidal mixture and solution.
What is a compound?
A compound is a substance that has a two or more chemical elements whose atoms are chemically bonded together.
What is an atom?
An atom is the basic units of matter and the defining structure of elements.
What are the rows called?
Periods.
Who discovered the elements?
Albert Ghiorso discovered the elements.
How do you separate mixtures?
You can separate mixtures by having a mixture of salt and sand, then by placing the mixture in water you will find that the salt dissolves but the sand remains.
Metals are found on the LEFT or RIGHT side of the periodic chart of elements?
left.
What is the number of protons and electrons in an atom called?
Atomic number.
What is a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent) called?
solution.
The elements that have the MOST in common (that are the most alike) are the elements in the same:
1) row
2) column
columns.
The minus atomic number is how to find the number of neutrons in an atom. What are they called?
atomic mass.
The elements found in group 3-12 that form or make compounds with distinctive colors are called the ______________ ___________ .
Transition Metals.
what is two or more substances that are in the same place but not chemically combined called?
mixture.