The tiny particles that make up all matter.
What are atoms?
The sub-atomic particle with a negative charge.
What are electrons?
The name of the element found in period 4, group 15.
What is Arsenic?
The number of protons that Aluminum (Al) has.
What is 13 protons?
Anything that has mass (weight) and volume (space).
What is matter?
The center of the atom, made up of protons and neutrons.
What is the nucleus?
The atomic number of Chlorine (Cl).
What is atomic number 17?
The number of electrons in a neutral atom of Argon (Ar).
What is 18 electrons?
A pure substance made up of only one type of atom.
What is an element?
The neutral sub-atomic particle.
What are neutrons?
The element symbol for Lead.
What is Pb?
(What element is this)
What is Fluorine?
Protons, neutrons, and electrons.
What are the parts of an atom?
or What are the sub-atomic particles?
The area outside the nucleus where electrons travel.
What are orbitals?
The atomic mass of Potassium (K).
What has the atomic mass of 39.0983?
I will also accept...39.1 or 39
The net charge of this atom
What is neutral or no charge?
The sub-atomic particles that atoms are defined (or identified) by.
What are protons?
The sub-atomic particle furthest from the center of the atom.
Will accept:
What are valence electrons?
or
What are electrons?
The number of neutrons in an atom of Hydrogen (H).
What is zero neutrons?
The number of neutrons in an atom of Neon.
What is 10 neutrons?