Examlex
When using a drop-down menu, once a user clicks an option to select it, the list is hidden and the selected value is displayed in the text box.
Radioactive Isotopes
Atoms of the same element that have different numbers of neutrons in their nuclei, causing them to be unstable and decay, releasing radiation.
Phosphate Groups
Phosphate groups are chemical groups containing phosphorus and oxygen; they play a key role in energy transfer and molecular signaling in cells.
Covalent Bond
A chemical bond involving the sharing of electron pairs between atoms, leading to the formation of a stable molecule.
Hydrogen Bond
A hydrogen bond is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
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