The Atom
Atoms can be seen with this type of microscope.
What is a scanning probe microscope?
Which of these is an element? Steel, mercury, carbon dioxide, or water?
What is mercury?
Electrons have this charge.
What is negative?
What is silver?
What is the nucleus?
Element with 9 protons.
What is fluorine?
The two subatomic particles that are found in the nucleus of the atom.
What are protons and neutrons?
Number of elements on the periodic table.
What is 118?
Element on the periodic table with 11 protons.
What is sodium?
What is the sun?
Element with 8 electrons when neutral.
What is oxygen?
Fluorine has nine of these.
What is protons?
Horizontal rows on the periodic table.
What are the periods?
The isotope carbon-14 has this many neutrons.
What is 8 neutrons?
The average mass of atoms of different isotopes.
What are protons?
Carbon has this many valence electrons.
What is 4?
There are this many naturally occurring elements.
What is 90?
The random movement of particles first observed by Robert Brown.
What is Brownian motion?
Deuterium, an atom of hydrogen with two neutrons in its nucleus, is an example of this type of atom.
What is an isotope?
An alkali metal that bonds with sodium.
What is chlorine?
32 electrons can fit in this energy level.
What is the 4th energy level.
Another name for a group of elements.
What is a family?
Atoms with the same number of protons but different numbers of neutrons.
What is an isotope?