P.E.N.
Which subatomic particle has a positive charge?
What is Proton?
What element has the symbol He?
What is Helium?
How many electrons can fit in the first energy level?
What is 2?
How many total atoms are in CO₂?
What is 3?
An atom has 9 protons. What element is it?
What is Fluorine?
Which subatomic particle has no charge?
What is Neutron?
What element has the symbol Na?
What is Sodium?
How many electrons can fit in the second energy level?
What is 8?
How many molecules of CO₂ are represented in 4CO₂?
What is 4 molecules?
An atom has 10 protons and 10 electrons. What is the overall charge of the atom?
What is Neutral?
An atom has 12 protons and 12 electrons. Is the atom neutral, positive, or negative?
What is Neutral?
What element has the symbol Ca?
What is Calcium?
An atom has 2 electrons in the first shell and 6 in the second. What element is it?
What is Oxygen?
How many total atoms are in 2H₂O?
What is 6?
Two atoms both have 8 protons, but one has 8 neutrons and the other has 10 neutrons. What are these atoms called?
What are Isotopes?
An atom has 17 protons and 18 electrons. What type of ion is it?
What is Anion (Negative Ion)?
What element has the symbol Cu?
What is Copper?
An atom has 2 electrons in the first shell and 8 in the second. What element is it?
What is Neon?
How many total atoms are in 2NH₃?
What is 8 atoms?
An atom has 15 protons and 18 electrons. What is the charge of the ion?
What is -3 (negative ion/ anion)?
An atom has 15 protons and 16 neutrons.
What is the mass number of the atom?
What is 31?
What element has the symbol Al?
What is Aluminum?
An atom has 2 electrons in the first shell, 8 in the second, and 1 in the third. What element is it?
What is Sodium ?
How many oxygen atoms are in 3Ca(OH)₂?
What is 6 oxygen atoms?
How many total atoms are in Al₂(SO₄)₃?
What is 17?