This feature of the periodic table determines the number of protons.
What is atomic number?
100
This particle has a positive charge.
What is a proton?
100
The center of the atom that holds most of the atom's mass.
What is the nucleus?
200
The modern name for this atomic model would be the chocolate chip cookie dough or blueberry muffin model.
What is the Plum Pudding model?
200
particles located inside the nucleus
What are protons and neutrons?
200
This region of the periodic table contains the metals.
What is the left side of the staircase?
200
This particle has a neutral charge.
What is a neutron?
300
description of the plum pudding model
What is a sphere of positive charge with negative electrons scattered throughout?
300
This element has 13 protons, 14 neutrons and 13 electrons.
What is aluminum?
300
This feature of the periodic table determines the number of electron rings.
What is the row number of the element?
300
The particle(s) that can change without changing the identity of the atom.
What are neutrons and electrons? Order doesn't matter.
300
An atom that doesn’t have a charge.
What is neutral?
400
This experiment proved the presence of the nucleus by reflecting a small fraction of the positive particles while letting the majority of the particles pass through.
What is the gold foil experiment?
400
determines the number of neutrons
What is atomic mass -atomic number?
400
This feature of the periodic table determines the number of electrons on the outermost ring.
What is the Roman numeral at the top of the column if followed by an A
400
What equation using subatomic particles determines the charge of the atom?
What is the number of protons-the number of electrons?
400
Two atoms of the same element that combine to form a molecule.
What is a diatomic molecule?
500
This model of the atom treats electrons as waves as well as particles.
What is the quantum model?
500
This subatomic particle determines the identity of the element.
What is a proton?
500
This feature of the Periodic table tells the maximum number of electrons that can fit on a ring.
What is the number of elements in the row?
500
This led to the discovery of the electron.
What is a cathode ray tube?
500
Atoms of the same element with differing numbers of neutrons.