Basic Periodic Table
What number tells you the number of protons and electrons?
Atomic Number
what group is C in?
14
Definition of atomic number.
the number of protons in the nucleus of an atom
what is the electron cloud?
a region around the nucleus of an atom where electrons are likely to be found
Who invented the Periodic table?
Dmitri Mendeleev
What are the Horizontal rows?
Periods
what Group and period is Au?
group 11 period 6
Definition of Isotope
an atom that contains the same number of protons and electrons but has additional or fewer neutrons
What is an atom?
the basic particle from which all elements are made
What is James Chadwick Known for?
Provided existence of neutrons.
what are the Vertical rows on the Table?
groups
What group are noble gases in?
18
Definition of Proton...
a positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element
What is the Nucleus?
the positively charged dense center of an atom containing neutrons and protons
What is John Dalton known for?
Atomic Theory.
Whats a Valence Electron?
an electron located in the valence shell
what period is Li in?
2
Definition of nuetron...
a subatomic particle forming part of the nucleus of an atom and having no charge
Where are Valence electrons in an atom
electrons in the outermost energy level of an atom
What is Erwin Schrodinger known for?
he is known for his Schrodinger cat/ Schrodinger equation
Whats Maliable Mean?
able to be hammered or pressed permanently out of shape without breaking or cracking.
From group _ to _ are transition metals.
3-12
definition of Atomic mass...
average mass of the protons and neutrons in the nucleus of an atom
What is the number of protons in the nucleus of an atom.
Atomic Number.
Whats Ernest Rutherford Known for?
Finding Nuclear structure of the atom