Question

Атомные массы 20,49,80 и 201

Answer 1

20-Неон,
Элемента с атомной массой 49-нет,
80-Бром,
201-Ртуть.

Answer 2

Атомная масса 20 - Неон(Ne)
Атомная масса 49 - нету, может вы имели в виду 59, если да - это никель(Ni)
Атомная масса 80 - Бром(Br)
Атомная масса 201 - Ртуть(Hg) 

Answer 3

Atomic Masses of 20, 49, 80, and 201

The atomic masses of 20, 49, 80, and 201 are significant in various contexts. Let's explore each atomic mass individually.

Atomic Mass 20: The atomic mass of 20 is significant in the context of chemistry and physics. It is the atomic mass of the element calcium (Ca).

Atomic Mass 49: The atomic mass of 49 is also important in the field of chemistry and physics. It is the atomic mass of the element indium (In).

Atomic Mass 80: The atomic mass of 80 is significant in various scientific contexts. It is the atomic mass of the element mercury (Hg).

Atomic Mass 201: The atomic mass of 201 is also important in scientific studies. It is the atomic mass of the element francium (Fr).

These atomic masses play crucial roles in understanding the properties and behaviors of the respective elements in chemical reactions, nuclear reactions, and various other scientific phenomena.