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The atomic mass of beryllium 9 is: 9,012 182 2 ± 0,000 000 4.

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What is the mass of beryllium with 5 neutrons?

its 6


If beryllium has an atomic number of 4 and an atomic mass of approximately how many neutrons does beryllium atom have?

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


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 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 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 number of an atom that has a mass of 9 and 5 neutrons?

The mass is protons + neutrons. So, if the mass is 9 and it has 5 neutrons, then there must be FOUR (4) protons. This would be the element beryllium (Be).


Why does beryllium have an atomic mass of 9 instead of 8?

The atomic mass of an element is determined by the sum of the protons and neutrons in its nucleus. Beryllium has 4 protons and typically 5 neutrons, resulting in a total of 9 nucleons (protons + neutrons). This is why its atomic mass is 9 instead of 8.


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.


An element has 4 protons 5 neutrons and 4 electrons What is the atomic mass of the element?

That would Beryllium, with an atomic number of 4 and mass number of 9Hope this helped!


What is beryllium-9s mass number?

Berylium is a non metal element. Atomic mass of it is 9.


What is the atomic number for an atom with a mass number of 9 and 5 neutrons?

The atomic number of an atom is determined by the number of protons it has. Given a mass number of 9 and 5 neutrons, you can find the number of protons by subtracting the number of neutrons from the mass number: 9 - 5 = 4. Therefore, the atomic number is 4, which corresponds to the element beryllium (Be).