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A glance at the Periodic Table will tell you that Beryllium, atomic #4, has 4 protons in its nucleus.
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What element has 4 protons 4 neutrons and 3 electrons?
Beryllium To figure this out: The atomic number of an element is the number of protons the element has in the nucleus. Using this knowledge you can figure out which element has the atomic number of four, which in this case is Beryllium.
What element has only 4 neutrons in the nucleus and is metallic?
your mother
What is the Bohr model for Lithium?
Lithium is element number 3Its nucleus contains 3 protons and 4 neutrons (Atomic Mass=7) and there are 3 electrons in orbit around the nucleus.Since there can be only 2 electrons in any orbit. the third electron orbits in a second orbital path, further out from the nucleus.
Helium-4 and helium-3 are?
isotopesHelium-4 and helium 3 are isotopes and each have 2 protons. Helium 3 only has 1 neutron, while helium 4 has 2 neutrons.
What is the element 28?
The element with atomic number 28 is Nickel (Ni). It is a transition metal in period 4 of the Periodic Table. It is the first element in the Nickel family. It has 28 electrons in 4 shells with 2 electrons in the outer shell.
What particle has 2 neutrons and 2 protrons in its nucleus?
It could be either an alpha particle or a He-4 isotope.
What element has 4 protrons 5 neutrons and 4 electrons?
Any atom with 4 protons is an atom of beryllium. If the atom is neutral, it must also have 4 electrons. However, 5 neutrons specifies an isotope, specifically Be-9, rather than an element as such.
What element has 12 alpha particles and 4 neutrons?
Mathematically it is Chromium 24Cr52 but within nucleus alpha particles separately do not exist they are only produced during radioactive disintegration.
When a nucleus undergoes nuclear decay by gamma rays the atomic number of the element?
nothing, the nucleus just relaxes to a lower energy state that is more stable
What element has 4 protons 4 neutrons and 3 electrons?
Beryllium To figure this out: The atomic number of an element is the number of protons the element has in the nucleus. Using this knowledge you can figure out which element has the atomic number of four, which in this case is Beryllium.
What is the difference between helium-4 and helium-3?
Helium is a noble gas (group 18 element) and has two valence electrons (stable electronic configuration) and is chemically inert. Oxygen belongs to group 16 with 6 valence electrons and is reactive element.
When an alpha particle is emitted the nucleus of the original element?
An alpha particle is a helium-4 nucleus, and contains two protons and two neutrons. Therefore, the original nucleus will have two protons and two neutrons less. Its atomic number will be two less, and its atomic mass will be 4 less.
What is the element formed during aplha decay?
It is not an element, but it is just the nucleus of a helium atom. In alpha decay equations, you can denote the alpha particle as 42He because it has an atomic mass of 4 and 2 protons.
How many 5-element DNA sequence contain only A and T?
4^4
What is the charge of Lead II?
A cation is any element with a positive charge. Lead most commonly forms an anion, which means it has a negative charge. But any element can have any charge, but only under certain condistions
What element has only 4 neutrons in the nucleus and is metallic?
your mother
What is the atomic mass of an element with 4 protons 5 neutrons and 4 electrons?
4 protons 4 electrons 5 neutrons subtract the number of of protons from the atomic weight
