All four of the halogens unite with hydrogen, but the affinity for hydrogen decreases as the atomic weight increases, hydrogen and fluorine uniting explosively at very low temperatures and in the dark, whilst hydrogen and iodine unite only at high temperatures, and even then the resulting compound i
explosively הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד