20% of 50
What is ten?
-2 + 3
What is 1?
The atomic number of this element is 6.
What is carbon?
These two particles are found in the nucleus.
What are protons and neutrons?
"Deck the halls with boughs of __________."
What is holly?
10% of 90
What is 9?
5 + (-2)
What is 3?
The atomic number of this element is 34.
What is selenium?
The atomic number tells you the number of these particles in the atom.
What are protons or electrons?
What is the newborn king?
25% of 80
What is twenty?
-7 + 6
What is -1?
The atomic number of this element is 19.
What is potassium?
The atomic mass tells you the number of these particles.
"On the third day of Christmas, my true love gave to me: ..."
What is three French hens, two turtle doves, and a partridge in a pear tree?
65% of 30
What is 19.5?
-4 - 2
What is -6?
The atomic number of this element is 22.
What is titanium?
If there are 4 protons and 5 neutrons in an atom, this is the atomic mass.
What is nine?
"O holy night, the stars..."
What is "are brightly shining"?
What is 89?
-3 + 7
What is 4?
The atomic number of this element is 36.
What is krypton?
These particles have a negative charge.
What are electrons?
Silent night, holy night, all is ______, all is _______
What is calm and bright?