The formula is H 2 O so the dot and cross diagram includes two ... so a triple bond forms between them. The structure of nitrogen is N≡N, showing that it has three shared pairs of electrons.

The dot and cross diagram shows that a water ... so a triple bond forms between them. The structure of nitrogen is N≡N, showing that it has three shared pairs of electrons.

Although each organism's DNA is unique, all DNA is composed of the same nitrogen-based molecules ... Beyond the ladder-like structure described above, another key characteristic of double-stranded ...

It turns out this natural barrier also plays a key role in making sure legumes get the right amount of nitrogen from their bacterial partners. Their findings, now published in Science, could help ...