Periodic Table
How many elements are listed on the periodic table?
118
What is the center of the atom called?
Nucleus
True or false H2O is an element
In a chemical formula the smallest number to the bottom right of an element called?
Subscript
What element is Fm
Fermium
What family is Iodine in?
Halogens
These are negatively charged?
What are electrons
2 hydrogen atoms and 1 oxygen atom
What is water
How many atoms are in the following chemical formula.
NH4Cl
6
What does the number at the bottom of the element on the periodic table tell you?
Atomic mass
This has 78 protons
What is platinum
These carry no charge
Neutrons
When elements are bonded,the atoms can be the same or diffferent(what is this called)
What is a molecule
How many atoms are in this formula?
Ca3(PO4)2
13
What does NaCl create?
Table Salt
What is the formula for carbon dioxide
CO2
These are located in the nucleus with the neutrons
What are protons
A ________is a chemical substance formed when 2 or more different elements bond in a specific proportion
What is a compound
What math process do you use when elements are contained in parenthesis?
Multiplication
What Element is at Period 5, Row 10
Palladium
What family is Hydrogen in?
Other metals
Made up of only one kind of atom
What is an element
How many atoms are in 2 water molecules
6
How many atoms are in this formula?
C3H7O2(OH)3
18
What letters are never used in the periodic table?
J & Q