Show:
number of neutrons
Element symbol
Atomic mass
Number of protons
Number of electrons
100
20
What is the number of neutrons in Calcium?
100
K
What is the chemical symbol for Potassium?
100
14
What is the atomic mass of nitrogen?
100
86
What is the number of protons in Radon?
100
59
What is the number of electrons in Cobalt?
200
4
What is the number of neutrons in Lithium?
200
Pb
What is the chemical symbol for Lead?
200
88
What is the atomic mass of Strontium?
200
11
What is the number of protons in Sodium?
200
82
What is the number of electrons in Lead?
300
20
What is the number of neutrons in Potassium?
300
Ag
What is the chemical symbol for Silver?
300
201
What is the atomic mass of Mercury?
300
11
What is the number of protons in Carbon and Boron combined?
300
51
What is the number of electrons in Argon + Arsenic?
400
7
What is the number of neutrons in Nitrogen?
400
Fe
What is the chemical symbol for Iron?
400
48
What is the atomic mass of Titanium?
400
95
What is the number of protons in Americium?
400
27
What is the number of electrons in Aluminum?
500
146
What is the number of neutrons in Uranium?
500
Pu
What is the chemical symbol for Plutonium?
500
305
What is the atomic mass of Silver and Gold combined?
500
39
What is the number of protons in Potassium?
500
55
What is the number of electrons in Cesium?