5 сент. 2020 г. · Selenium (Se) has 30 protons and 20 neutrons in each atom, therefore its atomicnumber is. and its atomic mass number is. 30,20. 30, 50.

For each of the following isotopes, write the number of protons, neutrons, and electrons. ... Selenium-30. Selenium-35. # of protons. 11. # of protons. # of ...

Atomic Mass, 78.96 atomic mass units ; Number of Protons, 34 ; Number of Neutrons, 45 ; Number of Electrons, 34 ; Melting Point, 217.0° C.

12 дек. 2022 г. · The difference between each selenium isotope is based on the number of neutrons in the nucleus.

26 февр. 2011 г. · Selenium has 34 protons and typically has 45 neutrons. This answer is: Helpful (0) Not Helpful ...

Neutrons: 40;. Abundance: 0.89%;. Jn: 0+;. Selenium stable isotope number ... Selenium radioactive isotope number 30: 94Se. Neutrons: 60;. Jn: 0+;. Decay: β ...

A selenium atom have with a charge of -2 has 34 protons, 45 neutrons, and 36 electrons. The atomic number of an element gives the number of protons found in ...

This table shows the pattern in the periodic table that Mendeleev developed and how the missing elements at that time could be predicted.

There are 45 neutrons in one Selenium atom. The number of neutrons isn't listed on the periodic table, but you can use the information on the table to calculate ...

In the below table we list the number of protons, neutrons and electrons for each element in the periodic table.