Question

.......... are unknown elements​

Answer 1

Answer:

Krypton (Atomic number: 36)

Curium (Atomic number: 96)

Antimony (Atomic number: 51)

Copernicium (Atomic number: 112)

Bismuth (Atomic number: 83)

Answer 2

Answer:

85

Explanation:

Although there are elements we have not yet created or found in nature, scientists already know what they will be and can predict their properties.