Answer: 20 mg Te-99 remains after 12 hours.
Explanation: N(t) = N(0)*(1/2)^(t/t1/2)
N(t) = (80 mg)*(0.5)^(12/6)
N(t) = 20 mg remains after 12 hours
Answer:
below :)
Explanation:
Bones, droppings, and other dead matter
Energy storage molecules, cellular respiration
Process, energy
Oxygen, energy storage molecules, energy, carbon dioxide
Cellular respiration, carbon
Carbon, nitrogen
Nitrogen
Decomposers, ecosystem
The question is incomplete but i will try to offer as much help as i can.
Answer:
See explanation
Explanation:
The electron was discovered by J.J Thompson. His model of the atom was called the plum-pudding model of the atom.
He discovered that cathode rays being negatively charged particles were deflected by a magnet in just the same way as moving, negative electrically charged particles.
Similarly, in an electric field, they are deflected towards the positive plate of the electrostatic field which shows that they are negatively charged.
Titan is one of Saturn's moon and they are interested in it because it has an atmosphere like Earth.
Answer:
Nitrogen, Hydrogen, Oxygen, Chlorine, and Fluorine are all gases at room temperature.
Explanation:
