Atomic Models of the Atom
The plum puddling model of the atom was described by
J. J. Thomson
3517Cl-1
How many protons does this atom have?
17 protons
What are the three particles of radioactivity?
Alpha, Beta, gamma particles
What atoms would have a charge of -1?
Anything in group 7 or 17 (Halogens)
Where are the halogens at on the periodic table?
Group 7 or Group 17
The scientist credited with the discovery of the proton
Rutherford
3517Cl-1
How many neutrons does this atom have?
35-17 = 18 neutrons
Place the three particles in order of decreasing penetration power.
Gamma, Beta, Alpha
What is the correct potential charge for Phosphorus?
-3
Which group contains the alkaline earth metals?
Group 2
What was the most surprising results of the gold-foil experiemnt?
Atoms have a positive center and are mostly made up of space
3517Cl-1
How many electrons does this atom have?
17+1 = 18 electrons
Which has the greatest ionization power?
Alpha particles
The electron configuration of the boron atom is 1s22s22p1. If an electron is removed from the atom, from which sublevel is it taken?
2p1
Which group contains the noble gases?
Group 18 or Group 8
The Bohr model of the atom shows that electrons are located
In orbitals around the nucleus
A nuclide has a mass number of 37 and 20 neutrons. What is this isotope?
3717Cl
What is missing in this equation:
23892U + ________ -> 23992U
10n = neutron
Which is the correct electron configuration for the element Zirconium (Zr)?
a. 1s22s22p63s23p64s23d104p65s2
b. 1s22s22p63s23p64s23d104p65s24d2
c. 1s22s22p63s23p64s23d104p6
d. 1s22s22p63s23p64s23d104p65s24d10
B
What element has the greatest atomic radius?
Francium or Cesium
Who discovered the neutron?
Chadwick
What does the atomic number tell us about the element?
The number of protons
What is missing from this equation:
146C -> 147N + _______
0-1 e or 0-1B Beta particle
Which orbitals are included in the valence electrons?
s and p
What element has the greatest electronegativity?
Fluorine