30 is zinc's atomic number. 34 is selenium's.
The atomic number of Selenium is 34.
Selenium's atomic number is 34.
The mass of selenium is approximately 78.96 atomic mass units. The atomic number of selenium is 34.
Selenium, with the chemical symbol Se, is the chemical element with the atomic number 34.
This isotope is shown in hyphen notation: on the left side of the hyphen is the isotope's name, and on the right side is the isotope's mass number. The mass number of an element is the total number of particles in the nucleus (the number of protons + neutrons an atom has).In order to get the number of protons an atom has, find its atomic number on the periodic table. Selenium's atomic number is 34.... wait, this doesn't make any sense. If it has a mass number of 30 and an atomic number of 34, it has -4 neutrons.I'm sorry, but it looks like you have the problem wrong.
The atomic number of Selenium is 34.
Selenium's atomic number is 34.
The atomic number is 30 because it is determined by the number of protons in the nucleus of an atom. Since the atom is neutral, it will also have 30 electrons surrounding the nucleus to balance the positive charge of the protons.
The mass of selenium is approximately 78.96 atomic mass units. The atomic number of selenium is 34.
Selenium, with the chemical symbol Se, is the chemical element with the atomic number 34.
Selenium has atomic number 34.
The mass number is the sum of the number of protons and neutrons in the nucleus of the atom which is 74. Alternative answer 58 is the answer (???)
This isotope is shown in hyphen notation: on the left side of the hyphen is the isotope's name, and on the right side is the isotope's mass number. The mass number of an element is the total number of particles in the nucleus (the number of protons + neutrons an atom has).In order to get the number of protons an atom has, find its atomic number on the periodic table. Selenium's atomic number is 34.... wait, this doesn't make any sense. If it has a mass number of 30 and an atomic number of 34, it has -4 neutrons.I'm sorry, but it looks like you have the problem wrong.
Element atomic number 34 is Selenium. Do google search for "Selenium density"
An atom of selenium with an atomic number of 34 has 34 electrons. The mass number of 79 suggests that the total number of protons and neutrons in the nucleus is 79. Since the atomic number (protons) is given as 34, the number of neutrons can be calculated as 79 - 34 = 45.
Selenium has an atomic number of 34, which means it has 34 protons. To find the number of neutrons in selenium-80, subtract the atomic number (34) from the isotope number (80). Therefore, selenium-80 would have 46 neutrons (80 - 34).
The number of protons in an atom of any atomic number is the same as the atomic number, because that is the definition of atomic number. Therefore, in the given question, the answer is 34; the mass number is not needed to answer.