General
Symbols and Stars
Isotopes
Bohr-Rutherford Models
Atoms and Ions
Unit 0
100
The charge of a proton
What is +
100
The element that forms when two hydrogen atoms fuse together
What is Helium
100
Isotopes are ________ of the same element with different _________.
What are atoms and mass numbers
100
The number of protons in an atom of Na
What is 11
100
The atom with atomic number 40
What is Zirconium
100
0.00215 in scientific notation
What is 2.15 x 10-3
200
The relative mass of a neutron
What is 1
200
What 89 stands for in 89Y
What is mass number
200
The number of neutrons in Oxygen-17
What is 9
200
The number of electrons the 3rd energy shell holds
What is 18
200
The atom with 50 protons
What is Tin
200
(12.34 - 9.025) x 4.3
14
300
(T/F) All atoms of the same element are identical
False
300
The element that would form when two atoms of aluminum fuse together
What is iron (Fe)
300
Protons + Neutrons =
What is mass number
300
The name for electrons in the outermost shell
What are valence electrons
300
The type of ion that metals typically form
Cation
300
The volume of liquid in the graduated cylinder.
What is 44.8 mL
400
Where the mass of the atom is found
What is the nucleus
400
The number of electrons in an ion of barium.
What is 54
400
The most common isotope for boron
What is boron-11
400
Draw a Bohr-Rutherford model for an atom of Oxygen
400
The type of ion that sulfur will form, and its likely charge
What is an anion and -2
400
The volume occupied by 34.5 g of aluminum when aluminum's density is 2.70 g/mL
What is 12.8 mL
500
The most accurate model of the atom
What is the Quantum/cloud model
500
The number of protons neutrons and electrons in 18474W+2
P=74
N=110
E=72
500
Iodine has three stable isotopes. Iodine-127 with 80% relative abundance, 126I with 17% relative abundance, and Iodine-128 with 3% relative abundance. Calculate the average atomic mass.
What is 126.86 amu
500
The number of valence electrons in an ion of Br
What is 8
500
The number of protons neutrons and electrons in an ion of Francium-224
P=87
N=137
E=86
500
The conversion of 74.3 hL to mL
What is 7.43 x 106 mL