2.
The element that fills balloons.
3.
King Midas turned everything he touched into this.
4.
Trace amounts of element 92 are found in granite countertops.
5.
This element makes colorful signs that glow brightly at night.
6.
Most creatures on Earth need this element to breathe.
7.
Enables computer technology and has a valley named after it.
8.
Strong bones like this element.
9.
The element that makes diamonds hard.
10.
An element with a radioactive isotope found in bananas.
11.
Spontaneously emitting particles and photons as it transmutes to a new element.
12.
Elements lighter than iron fuse, while elements heavier than iron generally fission.
