This is the number of protons of an element and is represented on the lower left.
What is the Atomic Number
These negatively charged subatomic particles have essentially no mass when compared with their counterparts.
What are electrons?
This is what you have when two atoms with the same number of protons but different atomic masses.
What are isotopes?
This is the atomic number for sodium.
What is 11?
This is the number of atoms in 1 mole of potassium.
What is 6.02 x 1023?
Groups/families run in thisdirections
WHat is up and down?
These subatomic particles are the bouncers of the nucleus.
What are neutrons?
Atoms that gain electrons are called this.
What are anions?
This is the number of valence electrons for group 15.
What is 5?
This is the molar mass for nickel to 2 decimal places.
58.69g/mol
This group of element is unreactive due to a full valence shell of electrons
What are the Noble Gases?
This subatomic particle is responsible for the identity of an element.
What are protons?
When an atom loses electrons, this is the reaction it has undergone.
What is oxidation?
This is the charge on ions formed from alkali metals?
What is +1?
This is the number of moles of atoms in 3.7x 1024 atoms of Cr to 1 decimal place.
What is 6.1 moles?
The zig -zag line separates the two major parts of the periodic table. This part is left of the line.
What are metals?
These special electrons are responsible for chemical bonding and can be gained or lost.
What are valence electrons?
This law states that atoms will gain, lose, or share outermost electrons to complete their outer shell.
What is the octet rule?
Element X has 2 isotopes. X-200 makes up 75% of the sample and X-202 makes up 25% of the sample. This would be its average atomic mass to one decimal places with units.
What is 200.5 amu?
This is the mass in grams of 2.4 mol of MgCl2 to ones place.
228g+/- 1g
Malleable, ductile, and lustrous are all characteristics of this subset of the periodic table.
What are metals?
This model is an over-simplification of how electrons are arranged in atoms.
What is a Bohr diagram?
Copper becomes a +2 ion. This would be the electron half reaction.
What is Cu ---> Cu2+ + 2e-
This is the number of electrons that a Bohr diagram can hold in its first shell.
What is 2?
This is the mass in grams of 2.5x1023 atoms of Fe to one decimal place.
What is 23.3g.