Manganese is a transition metal with the symbol Mn and atomic number 25. It has 25 protons, 30 neutrons, and 25 electrons. Manganese is a solid at normal temperatures, with a melting point of 1245.0属C and boiling point of 1962.0属C. It is used to make steel stronger and is an important component of batteries.
3. Raisin bran cereal 1 cup 0.78-3.02
Brown rice, cooked 1/2 cup 1.07
Whole wheat bread 1 slice 0.60
Pinto beans, cooked 1/2 cup 0.39
Lima beans, cooked 1/2 cup 0.49
Navy beans, cooked 1/2 cup 0.48
Spinach, cooked 1/2 cup 0.84
Sweet potato, cooked 1/2 cup, mashed 0.44
Tea (green) 1 cup (8 ounces) 0.41-1.58
Tea (black) 1 cup (8 ounces) 0.18-0.77
4. Protons and Neutrons
Number of Energy Levels: 4
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 13
Fourth Energy Level: 2
5. General Information
Name:Manganese
Symbol:Mn
Atomic Number:25
Atomic Mass:54.93805
Number of Protons:25
Number of Neutrons:30
Number of Electrons:25
Melting Point:1245.0 属C
Boiling Point:1962.0属C
Density: (near.) 7.21 g揃cm3
6. Normal Phase:Solid
Classi鍖cation:Transition Metal
Crystal Structure:Centered Cubic
Color:Steel or Silver Gray
Date of Discovery:1774
Discoverer: Johann Ghan
Name of Origin:Latin word mangnes
Color: Steel or Silver Gray,
Uses: Disposable Batteries, Aluminum to produce a Metal