| Consider windows that fill that space with gases like argon, krypton, or a mix of the two. |
| This calorimeter, which contains 400 kilograms of liquid krypton, detected the photon pairs. |
| They attributed those lines to the presence of three new elements, which they named neon, krypton, and xenon. |
| The relative difficulty in identifying certain elements has given birth to such names as lanthanum, krypton and dysprosium. |
| In the early 1960s, a number of chemists found ways of making compounds of some noble gases, including radon, xenon, and krypton. |
| However, some windows use argon or krypton in this space to improve thermal performance. |
