bromine
The element with 17 protons is chlorine, as the number of protons determines the element's identity. With 18 neutrons, its atomic mass is approximately 35, which corresponds to the isotope chlorine-35. This isotope is one of the most abundant forms of chlorine found in nature.
The mass number is the amount of protons and neutrons in an element. The atomic number is equal to the amount of protons. Therefore to get the number of protons from the given information, you would subtract 37 from 72 which gives you 35 protons aka its atomic number!
There is no such element. Atomic numbers represent how many protons are in the nucleus of an atom. Lithium's atomic number is three; it has three protons. An atom with 35.543 protons can't exist because there can't be a fraction of a proton - how can you have 35 and .543 protons? I think perhaps you confused atomic number with atomic mass. Chlorine's atomic mass is 35.543 grams.
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.
The atomic number of an element is equal to the number of protons in a single atom. Therefore, Bromine has 35 protons.
Atomic number = Number of protons = 35 - 18 = 17.So the element is chlorine.
If an atom has 35 electrons, it will also have 35 protons and its atomic number will be 35. If you go to the periodic table an look up the element with atomic number 35 you will se it is the element Bromine and the symbol for the element is Br.
Protons - 35 Neutrons - 43 Atomic Number - 35 Electrons - 35
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.
Protons are subatomic particles that determine the atomic number of an element. The number of protons in an atom's nucleus is what defines its atomic number; this uniquely identifies each element on the periodic table.
The atomic number is equal to the number of protons. So the atomic number is 16.
The atomic number is the number of protons in an atom of an element.