Proton - positive, nucleus
Neutron - neutral, nucleus
Electron - negative, orbitals
Isotopes differ in the number of ...
neutrons
Use the periodic Table. How many protons neutrons and electrons are in a neutral sodium atom
P = 11
N = 12
E = 11
How many electrons are in C+2
4
Physical or Chemical...
Boiling Water
Physical
The following scientists have been listed alphabetically. Place them in order of discovery from first to most recent.
Bohr, Chadwick, Dalton, Rutherford, Thomson
Dalton, Thomson, Rutherford, Chadwick, Bohr
Strontium consists of four isotopes with masses of 84 (abundance 0.50%), 86 (abundance of 9.9%), 87 (abundance of 7.0%), and 88 (abundance of 82.6%). Calculate the atomic mass of strontium.
87.71 amu
How many protons neutrons and electrons are in the element with atomic number K?
p = 19
n = 20
e = 19
How many protons neutrons and electrons are in 919F-1
p = 9
n = 10
e = 10
Lucas estimated the weight of his pet rabbit, Blu, to be 5.55.5 pounds. Blu’s actual weight is 4.754.75 pounds. Find the percent error.
15.8%
Who is responsible for EACH OF THE FOLLOWING atomic models?
plum pudding -
solid sphere -
plum pudding - Thomson
Solid Sphere - Dalton
Calculate the atomic mass of lead. The four lead isotopes have atomic masses and relative abundances of 203.973 amu (1.4%), 205.974 amu (24.1%), 206.976 amu (22.1%) and 207.977 amu (remainder).
207.217 amu
How many protons neutrons and electrons are in 94Be?
P = 4
N = 5
E = 4
How many protons neutrons and electrons are in the atom Calcium if it has a -3 charge?
p = 20
n = 20
e = 23
Find the volume that 35.2 g of carbon tetrachloride (CCl4) will occupy if it has a density of 1.60 g/mL.
22 mL
Who is the father of EACH OF THE FOLLOWING?
electron -
neutron -
electron - Thomson
neutron - Chadwick
Calculate the atomic mass of copper if copper-63 is 69.17% abundant and copper-65 is the other known isotope.
63.62 amu
How many protons neutrons and electrons are in the element with an average atomic mass of 30.974?
p = 15
n = 16
e = 15
How many protons neutrons and electrons are in atomic number 3 with a +1 charge?
p = 3
n = 4
e = 2
A container holds 7.58 liters of liquid. How many gallons is this?
1 gal = 3.79 L
2 L
Who did each experiment?
Gold Foil -
Cathode Ray Experiment -
Bombardment of Beryllium-9 -
Gold Foil - Thomson
Cathode - Rutherford
Be-9 - Chadwick
Boron exists in two isotopes, boron-10 and boron-11. Based on the atomic mass, which isotope should be more abundant?
The atomic mass of boron is 10.811; therefore, boron-11 is more abundant because the mass number is closer to the atomic mass.
How many protons neutrons and electrons are in Mg? Also determine the atomic number and mass number.
p = 12
n = 12
e = 12
mass = 24
atomic # = 12
Determine the protons, neutrons, and electrons of
2713Al-3
p = 13
n = 14
e = 16
The elephant weighs 4.3 tons. How many ounces is this elephant?
1 ton = 2000 lbs
1 lb = 16 oz
137,600 ounces