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Since the mass number is protons plus neutrons, it would have 5 neutrons.

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The atomic mass of beryllium with 5 neutrons?

Beryllium typically has 4 neutrons in its nucleus, so an isotope with 5 neutrons would have a mass number of 9. Therefore, the atomic mass of beryllium with 5 neutrons would be approximately 9 atomic mass units (amu).


What is the mass of beryllium with 5 neutrons?

its 6


Beryllium has a atomic number of four and a atomic mass of 9 beryllium has?

Beryllium has an atomic number of 4, which indicates the number of protons in its nucleus. Its atomic mass of 9 includes the total number of protons and neutrons in its nucleus. This means that beryllium has 4 protons and usually 5 neutrons.


What n is beryllium?

Beryllium is a chemical element with the symbol Be and atomic number 4.


How many protons are in the nucleus of an atom of beryllium?

The atomic/proton no. of beryllium is 3. Thus the number of protons is 3.


What is the Mass number in beryllium?

The atomic mass is the same as the atomic weight therefore it is 9.01218. Beryllium is a non metal element. Atomic mass of it is 9.01. The atomic mass number, which is distinct from the atomic mass and the atomic weight, is 9.


How many neutrons and electrons does berylluim?

neutrons in berylium are 5 because Atomic mass - 9 Atomic number - 4 number of neutrons = Atomic mass - Atomic number = 9 - 4 = 5 neutrons = = berylium is metal = no berylium is not a true metal most of its properties are similar to the non metals.....


What is the atomic mass of an element with 4 protons 5 neutrons and 4 electrons?

The atomic mass of an element is the sum of the number of protons and neutrons in the nucleus. In this case, the element has 4 protons and 5 neutrons, so its atomic mass is 4 + 5 = 9 atomic mass units (amu). The number of electrons does not affect the atomic mass.


What has 4 neutrons?

An atom of beryllium has 4 neutrons. It has an atomic number of 4, which corresponds to the number of protons in its nucleus.


How many protons and electrons and neutrons does beryllium-10 have?

Beryllium-10 has 4 protons and 4 electrons. Since the atomic number of beryllium is 4, this is how many protons and electrons it has. Beryllium-10 is an isotope, which means it has 6 neutrons, as the total mass number of beryllium-10 is 10.


How many neutrons are in a neutral beryllium atom?

A neutral beryllium atom has four neutrons. This is because beryllium's atomic number is 4, which means it has 4 protons in its nucleus, and since it is neutral it also has 4 electrons to balance the charge.


What element has an atomic mass of 9.01218?

Silicon has a Atomic Mass number (weight of protons and neutrons) of 28.09. Its actually 28.0855