This is the chemical symbol for oxygen.
What is O?
Elements in the same column are part of the same ____.
What is a group or family?
Subatomic particles with positive charges.
What are Protons
This element has the atomic number 1.
What is hydrogen?
This family of elements is located in Group 1 and is very reactive with water
What are alkali metals?
Particles found in the nucleus that have no charge.
What are Neutrons
These are the tiny particles found in atoms that include protons, neutrons, and ____.
What are electrons?
The elements in Group 18 are known for being nonreactive.
What are noble gases?
Electrons orbit the nucleus in these areas according to Niels Bohr.
what are electron shells and energy levels
The number of protons in an atom is also known as this.
What is the atomic number?
Elements in this group are also called halogens.
What is Group 17?
If an atom has 6 protons, 6 neutrons, and 6 electrons, its approximate mass is. . .
What is 12
This is the term for a horizontal row in the periodic table.
What is a period?
This element is in the same family as oxygen and has the atomic number 16.
What is sulfur?
Isotopes of the same element differ in the number of these particles.
What are Nutrons