What do the roman numberals mean? A-The charge on a non-metal
B-The charge on an Alkali Metal
C-The charge on a Transition Metal
D-The charge on a Metalloid

Express the following number in scientific notation. 0.026890 =

How many moles of no2 will form when 3.3 moles of cu are reacted with excess hno3?

In chemistry, the type of an atom (what element it is) is determined by: a) the number of protons it contains in its nucleus.b) the number of neutrons it contains in its nucleus.c) the number of protons it has in a cloud around the nucleus.d) the number of neutrons it has in a cloud around the nucleus.e) the number of electrons it exchanges with its neighbors.