They're diatomic molecules. It needs to be covalently bonded with another molecule of the same element, therefore Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine and Bromine always come in 2 molecules. To remember this, use this mnemonic!
Have No Fear Of Ice Cold Beer
This mnemonic will help you in exams when you need to maybe write an equation! Hope this helps!!
They're diatomic molecules. All elements in group 7 can't be stable on it's own, it needs to be covalently bonded with another molecule of the same element, therefore Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine and Bromine always come in 2 molecules. To remember this, use this mnemonic!
Have No Fear Of Ice Cold Beer
This mnemonic will help you in exams when you need to maybe write an equation! Hope this helps!!
It like you've never listened to anything your chemistry teacher has ever said...
Some people find things harder to grasp when compared to others. No need to hate on that person. It's like you never actually learnt to actually realize how what you say can impact someone. The whole point of TSR is to help people out and asking questions on things you might have, don't act like you know everything.
"Evidence for (or against) the existence of diatomic astatine (At2) is sparse and inconclusive. Some sources state that it does not exist, or at least has never been observed, while other sources assert or imply its existence."
They're diatomic molecules. It needs to be covalently bonded with another molecule of the same element, therefore Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine and Bromine always come in 2 molecules. To remember this, use this mnemonic!
Have No Fear Of Ice Cold Beer
This mnemonic will help you in exams when you need to maybe write an equation! Hope this helps!!
"Evidence for (or against) the existence of diatomic astatine (At2) is sparse and inconclusive. Some sources state that it does not exist, or at least has never been observed, while other sources assert or imply its existence."
I read that. We can't say for sure whether it exists. Since the other halogens are diatomic it might make sense for astantine to be as well, but you can't just assume a pattern will continue indefinitely.
In any case it probably makes little difference because nobody really works with astatine.