Respuesta :

( I am in middle shcool but I will try to help)             
Name: Manganese 
Symbol: Mn 
Atomic Number: 25 
Atomic Mass: 54.93805 amu 
Melting Point: 1245.0 °C (1518.15 K, 2273.0 °F) 
Boiling Point: 1962.0 °C (2235.15 K, 3563.6 °F) 
Number of Protons/Electrons: 25 
Number of Neutrons: 30 
Classification: Transitional metal
Crystal Structure: Cubic 
Density  293 K: 7.43 g/cm
Color: silverish/grayish
(hope this helps)