Question 7 Which of the following discoveries led to the development of the quantum mechanical model?
A electrons occupied different energy levels around the nucleus
B
atoms of gases combined to form compounds in whole-number ratios
Cmost alpha particles passed through gold foil without hitting matter
D cathode rays could be bent by a magnetic field

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds

When microscope slides are stained to show blood cells, the small red blood cells that appear on the slides are much numerous than the large white blood cells. this supports the concept that

Tinererining 01: 57: 44 which statement correcte describes the actual veld and the theoretical yield of a reaction? textual vec is calculated to the reactant amounts but the theoretical yeld must be measured for each instance of a the actual vec is calculated from the amount of the limiting reactant and the theoretical yield is calculated from the 发公主 the actual weld depends on the reaction centers, but the theoretical yield and only with reactant amounts the actual vele represents the maximum weld possible and the theoretical yield assumes perfect reaction conditions save and ext e அட