Multiple choice general knowledge science & technology

In lab, we found a metal element is solid when kept in a beaker, but melts as soon as you take it up on your palm. What metal is it possibly?

  1. Rhenium

  2. Gallium

  3. Selenium

  4. Promethium

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gallium has an unusually low melting point of 29.76°C (85.57°F), just above typical room temperature but below human body temperature (~37°C). This unique property means gallium remains solid in a beaker at room temperature but melts when held in your warm hand. Selenium is a nonmetalloid, while rhenium and promethium have much higher melting points.