Which of the following was NOT suggested by Rutherford’s gold foil experiment? Nearly all the atom’s mass is in the nucleus.
A positive charge is concentrated in the central region called the nucleus.
The nucleus makes up the majority of the atom’s volume.
Atoms are mostly empty space.

Two friends at different locations want to communicate with each other by sending low energy signals. which of the following methods can they use to communicate? a) produce x-rays using colliding electrons and send them to radios, which capture sound b) send messages using infrared radiation, which travel in the form of waves c) send radio waves through intervening media like radio and television d) produce sound waves using microwaves from heated objects

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

Building glycogen from glucose molecules is an example of