A unit used to count groups of particles.
What is a mole?
This Englishman's experiment showed that the atom is mostly empty space.
Who is Rutherford?
Charge on a neutron.
What is zero (uncharged or neutral)?
The rows and columns on the periodic table describes this about an atom.
What is electron arrangement?
These two particles make up the net charge of an atom.
What are protons and electrons?
This particle is shown on the rings of the Bohr diagram.
What are electrons?
What are grams?
This particle thinks positively.
What is a proton?
Mass of an electron
What is close to zero or practically nothing?
Elements in Group 17 (7A).
What are halogens?
The total number of electrons in first two energy levels.
What is 10 electrons?
This many electrons are present in a neutral Rubidium atom.
What is 37?
This is the mass of one mole of a compound.
What is molar mass?
Isotopes of the same element have different numbers of these.
What are neutrons?
This number represents the number of protons and neutrons combined.
What is the mass number?
These family is in the middle of the Periodic Table.
What are transition metals?
This is an atom that gained or lost electrons.
What is an ion?
This drawing shows the valence electrons for an atom.
What is a Lewis Diagram?
Count quickly - you'll need a long time to count this many particles.
What is 6.02x10^23?
In an atom, these are found in the empty space.
What are electrons?
This is the energy it takes to remove an electron from an atom's valence shell.
What is ionization energy?
These are the most stable elements.
What are the Noble Gases (Group 18 or 8A)?
This atom has 6 electrons in its third shell.
What is sulfur?
All atoms can be represented by this specific number.
What is the atomic number?
This scientist's number is 6.02x10^23.
This was the original idea for atoms.
What is atomos?
These atoms are identical except for their neutrons.
What are isotopes?
These are the most reactive metals.
What are the Alkali metals (Group 1)?
Careful - this class of elements can have mixed properties
What are metalloids?
You include all of this information when you're writing a nuclide.
What are the atomic symbol, atomic mass, and atomic number?