21 protons, 21 electrons and 24 neutrons in 21Sc45 isotope.
Selenium-79 is a radioisotope of selenium containing 34 protons and 45 neutrons.
79? I'm pretty sure the atomic mass of Bromine is 80. Incase you were wrong, the Atomic mass = Number of protons + Neutrons, which is 80. The atomic number is 35, which is the number of protons. Protons = 35. So the No. of Neutrons = 80 ( protons & neutrons) - 35 (protons) = 45 ( No. of neutrons) and Finally for electrons = the number of protons which is 35.
Rhodium has 45 protons, 45 electrons and 58 neutrons.
The isotope 85Br has 35 protons and electrons; also 45 neutrons.
Selenium (Se) has an atomic number of 34 which means in a balance atom Se will have 34 protons and 34 electrons then Se has a mass of 79 so to get the neutrons we minus the protons from the mass and we get 45 final answer: Neutrons: 45 Protons:34 Electrons: 34
Neutrons: 58 Electrons: 45 Protons: 45
Selenium-79 is a radioisotope of selenium containing 34 protons and 45 neutrons.
The element with atomic number 35 is bromine (Br). It has 35 protons and since it is neutral, it also has 35 electrons. To find the number of neutrons, subtract the atomic number (35) from the atomic mass (80). So, bromine-80 has 45 neutrons.
Neutrons: 58 Electrons: 45 Protons: 45
79? I'm pretty sure the atomic mass of Bromine is 80. Incase you were wrong, the Atomic mass = Number of protons + Neutrons, which is 80. The atomic number is 35, which is the number of protons. Protons = 35. So the No. of Neutrons = 80 ( protons & neutrons) - 35 (protons) = 45 ( No. of neutrons) and Finally for electrons = the number of protons which is 35.
Atomic number 20 therefore 20 protons and 20 electrons. Mass number 45 therefore 45-20 = 25 neutrons.
Rhodium has 45 protons, 45 electrons and 58 neutrons.
Naturally, it can only have 58 neutrons. Synthetic isotopes however can have between 44 and 77 neutrons to this date.
An atom of bromine-81 has 35 protons, 35 electrons, and 46 neutrons. This is because the atomic number of bromine is 35, which corresponds to the number of protons and electrons, and the atomic mass of bromine-81 is 81, which is the sum of protons and neutrons.
The isotope 85Br has 35 protons and electrons; also 45 neutrons.
Calcium-45 has 20 protons (since it is calcium) and therefore, it has 25 neutrons, as the atomic number (number of protons) subtracted from the mass number (protons + neutrons) gives the number of neutrons.
The mass number of an element is the sum of its protons and neutrons. Since Bromine has 35 protons (atomic number) and 45 neutrons, its mass number would be 35 + 45 = 80.