Atomic Number
Atomic number for Neon
10
I have 12 protons
Magnesium
35.45 amu
Z= 8, X = ?
O
Atomic number AND protons for Carbon
6,6
Atomic number for Potassium
19
I have 36 protons
Krypton
Mass number for Arsenic
74.92
A = 35.45, Z = 17, X = ?
Cl
Number of electrons for atomic number 31
31
Atomic number for Rhodium
45
I have 51 protons
Antinomy
Number of neutrons for Iodine
74
Z = 37, Rubidium
What is the atomic symbol?
Rb
Unit of measure for atomic mass
amu
Atomic number for Polonium
84
I have 98 protons
Californium
Number of neutrons for Gold
118
X = Rn, Z = ?, A = ?
Z = 86
A = 222
51.996 0
X
24
Chromium
Atomic number for Mendelevium
101
I have 60 protons
Neodymium
Calculate the number of protons and neutrons for Samarium
protons: 62
neutrons: 88
X = Tungsten, Z = ?, A = ?
Z = 74
A = 183.84
X = Xe, A = ?, Z = ?, b = ?
Z = 54
A = 131.29
b = 0