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what is the mass of an atom with 5 protons and 7 neutrons?
alasia hayes
To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.
Daija Kreiger
Wiki User
∙ 14y agoThe mass number is the number of protons+ the number of neutrons.
Therefore, your answer here will be 7+5=12
Hope it helped
Wiki User
∙ 12y agoadd the protons and neutrons. Meaning that the mass number of this atom is 12.
Wiki User
∙ 12y ago12, the sum of the numbers of protons and neutrons.
Wiki User
∙ 9y agoCarbon is a non metal element. Mass number of it is 12.
Wiki User
∙ 14y agoThe mass number would be about 12.
Wiki User
∙ 13y ago12
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aluminum
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An atom of boron (B) has 5 protons and 6 neutrons. What is its mass number?
11
What element has 5 protons 4 neutrons and 5 electrons?
Boron Boron BoronBoron's atomic number is 5, meaning 5 protons and 5 electrons.Boron's Relative Atomic Mass is approximately 10.8To find neutrons, you subtract the atomic number from the atomic mass.10.8 - 5 = 5.8 (or 5)Boron has 5 protons, 5 electrons and 5.8 neutrons
An atom that has 3 protons 4 neutrons and 3 electrons has an atomic number of?
The number of protons an atom has is equal to its atomic number. In this case, there are 3 protons, so its atomic number is 3 and this is lithium (Li), the third element on the periodic table. Atomic mass is sum of the number of protons and neutrons in the nucleus. Here, that is 3 and 4, respectively, giving our atom an atomic mass of 7. The number of electrons does not affect either the atomic number or the atomic mass, but instead determines the bonding properties of the atom and whether it has a charge. If the number of electrons is equal to the number of protons, as is the case here, the charge is neutral (0). If there are more electrons than protons, the atom will be negatively charged (5 electrons and 3 protons --> charge = -2), and if there are more protons than electrons, the atom will be positively charged (2 electrons and 3 protons --> charge = +1).
How many protons are in boron atom?
5 protons, 5 electrons and 6 neutrons :)
How many protons neutrons and electrons in B?
I think that's B, the symbol for the element boron. Boron has 5 protons and 5 electrons. The most common isotope has 6 neutrons. The other main isotope has only 5 neutrons.
What is the number of an atom with 5 protons and 7 neutrons?
To the find the mass number of an atom you add the protons and neutrons. Meaning that the mass number of this atom is 12.
An atom has 14 protons and 13 neutrons what it its atomic mass?
27 add protons and neutrons
What is the atomic mass of an atom with 5 electrons?
you can't tell the atomic mass of an atom if either the number of protons or neutrons is missing. But Boron with 5 protons and 6 neutrons has and atomic mass of 11.
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).
If a neutral atom has a mass of 12 amu and an atomic number of 5 determine the number of protons neutrons and electrons in the atom.?
Protons: 5 Neutrons: 7 Electrons: 5
What is the mass number if an atom has 5 protons 5 neutrons and 5 electrons?
10
What is the atom's mass number of an isotope that has an atom number of 5 and includes 6 neutrons?
The Atomic Mass is, basically, the sum of the protons (the "atomic number"), and the number of neutrons.
If an atom has the atomic number of 4 and the atomic mass of 9.012 how many electrons will it have?
Atomic mass is protons + neutrons, and the atomic number (4) gives you the number of protons. Thus, this atom would have 5 neutrons.
An atom of boron (B) has 5 protons and 6 neutrons. What is its mass number?
11
What is the mass numberfor an atom with 5 electrons 5 protons and 5 neutrons?
It is the boron element. It contains similar numbers of electrons and protons.
What is the mass number of a carbon atom with 5 neutrons?
Carbon's atomic number is 6, therefore it has 6 protons in its atoms. Mass number is the sum of protons and neutrons in the nucleus, which is 6 + 5 = 11.
How many protons and neutrons does a berylium atom have?
4 protons and about 5 neutrons
