What is the maximum number of electrons in the following energy level? n = 1

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

  the mississippians were considered to be  horticulturalists, which means they were