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Chlorine is in group 7. What is the charge on its ions, and is the charge positive or negative?

Chlorine is in Group 7 of the periodic table. Therefore a chlorine atom has 7 electrons in its outer shell. this atom needs one more electron to form an ion with a full outer shell. Hence the ion formed will...
TB
Answered by Tom B. • Chemistry tutor
117492 Views

How many quotes do I need and how do I organise them?

There are many ways to memorise quotes and although it will always be a slog, it can actually be the most fun and rewarding part of revision. Before memorising you've got to organise quotes. A big play or no...
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What is the blood supply of the liver?

The liver is unique in that it has a dual blood supply, both the portal venous system and the systemic circulation. 75% of the blood that flows through the liver is from the portal venous system, venous bloo...
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4200 Views

What impact did Louis Pasteur have on modern medicine?

Louis Pasteur showed that airborne microbes were the cause of disease, where previously people had blamed superstition. He built on the work of Edward Jenner, who discovered the smallpox vaccine, and helped ...
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Answered by Alex W. • History tutor
4124 Views

Why was the Weimar Republic in a state of crisis by 1923?

One of the reasons why the Weimar Republic was in a state of crisis was because of its poor reaction to the French and Belgian occupation of the Ruhr in 1922, namely paying their workers to go on strike lead...
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Answered by Joshua B. • History tutor
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