Be aware that some things/experiences are emerging "out of the nothing". One molecule doesn't have a temperature. It is the (intensity of their) interaction when you put enough of them together that physicists call temperature. (imho physics is a lot about statistics
Gravity1 is on atomic scale hardly existing compared to the electrical force. Do some math to compare the gravitational force between an electron and a proton (in Hydrogen) and the electrical force. Orders of magniture difference. You can check your math at - Fundamental interaction - Wikipedia -
Quantum effects and electronics are on different levels. Electronics in an Arduino works because there are many many electrons involved in one HIGH signal. In a quantum computer one single electron would/could have a superposition of many states/values. Again orders of magnitude difference.
1: maybe gravity is even not defined on atomic level as the positions of the proton and elektron are not defined precise due to Heisenberg, so their distance is uncertain too...