Who is the scientist who theorized incorrectly that electrons travel on fixed paths?
Niels Bohr
100
What is a tiny pacet of energy that is emitted by an atom when it reaches an excited energy state? (seen in the form of light)
a photon
100
What is the probability map for the path of an electron around the nucleus called?
an orbital
100
What elements on the periodic table are typically lustrous, ductile, and malleable?
the metals
100
How many neutrons does a neutral carbon atom contain?
6
200
What is the model devised by Victor de Broglie and Erwin Schrodinger that correctly demostrates the nature of electrons in an atom, and is still used today?
The wave mechanical model
200
What is the distance between two consecutive peaks in a wave of light?
A wavelength
200
What is the orbital name equivalent of an atom's ground state?
the 1s orbital
200
What are the elements that exhibit both metallic and nometallic behavior called?
metalliods
200
What is the molar mass of Lithium Sulfate (Li2SO4)?
110.0 g (109.94 g)
300
Who was the scientist who discovered that the atom is a small positive nucleus surrounded by tiny negative particles by conducting the gold-foil experiment?
Ernest Rutherford
300
What is the term used to define how many peaks of a wave of light pass a certain point per given time period?
frequency
300
How many sublevels are in the 3rd energy level?
3
300
As you go across a period (left to right), atomic size.....
decreases
300
What is the group farthest to the right on the periodic table called?
The noble gas group group
400
An influential atomic theory states the following. What is this theory called?:
Elements are made of atoms.
All atoms are identical.
The atoms of a given element are different from those of any other element.
Atoms of one element can combine with atoms of another element to form compounds-given compound always has the same relative numbers and types of atoms.
Atoms are indivisible in chemical processes.
Dalton's Atomic Theory
400
What principle states that an atomic orbital can hold a maximum of 2 electrons and those electrons muct have opposite opposite spins?
the Pauli exclusion principle
400
What sublevel comes after the 4s sublevel?
3d
400
Fill in the blank:
Ionization energy as you move down a group.
decreases
400
What are the four primary orbital levels (represented by letters) called?
s, p, d, f
500
Who is the scientist who developed the "plum pudding" model, which depicted the atom as a 'pudding' with a center of positive charge and negatie electrons scattered throughout?
Lord Kelvin (William Thompson)
500
The lowest possible energy level of an atom is called its...
ground state
500
How many valence electrons does Neon (Ne) have?
8
500
What element has the highest electronegativity value?
Flourine
500
What are we all going to get on the chemistry SOL?