So protons and electrons are a bit like the two different ends of a battery: they have equal and opposite electric charges. Since an atom contains equal number of protons and electrons, it has no overall charge: the positive charges on all the protons are exactly balanced by the negative ...
Thomson also knew that atoms are electrically neutral, meaning that they have no overall charge. He reasoned that there must be some positive charge in atoms that cancels out the negative charge of the electrons. He also followed the work of William Thomson (Lord Kelvin), who had proposed a ...
Why do atoms have an overall neutral charge? What would happen if OH-ions were added to a very basic solution? What is the electron configuration of the calcium ion? What is an example of the common-ion effect? Which type of ion channel opens ...
It works because these two different metals have atoms with different abilities to hold on to the electrons they contain. The zinc atoms in the nail lose their electrons (blue, e), which flow out through the circuit you've made to the copper atoms in the coin. This flow of electrons mak...
for the negative charge at both of its carboxylate locations during the reaction, the reorganization energy can be reduced significantly. It appears that the reason why this major catalytic effect has not been revealed earlier for glucosidases, is that no comparisons to uncatalyzed water reactions ...
Full hybrids have powerful enough electric motors and batteries to drive the engine independently, while in mild hybrids, the motor is too puny to power the car by itself and simply assists the engine (or allows it to switch off when the car is idle in traffic). Ordinary hybrids charge ...
We have electric clothes washing machines, dishwashers, vacuum cleaners and much more. So why not fit our homes with electric windows that can change from clear to dark automatically? Smart windows (also referred to by the names smart glass, switchable windows, and dynamic windows) do exactly ...
You can use Fleming's left-hand rule (motor rule) to figure out the direction of the force providing you remember that the rule applies to conventional current (a flow of positive charges) and the field flows from north to south. In this example, if we have a flow of electrons into ...
When atoms of hydrogen gas reach the catalyst, they split up into hydrogen ions (protons) and electrons (small black blobs). In case you're confused: hydrogen ions are simply hydrogen atoms with their electrons removed. Since they have only one proton and one electron to start with, a ...
As you rub the balloon,electrons(the tiny negatively charged particles insideatomsthat carry electricity) move from your pullover onto the balloon. In other words, the balloon gains more electrons than it should have and picks up an overall negative electrical charge. Since the electrons have left...