Ions have an extra or lost an electron. Isotopes have different numbers of neutrons.
Answer: 34
Explanation: I did this and that’s the answer
The pressure of a gas is the force that the gas exerts on the walls of its container. When you blow air into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. Pressure is a property which determines the direction in which mass flows.
D = m / V
D = 8.0 g / 25 cm³
D = 0.32 g/cm³
Answer A