Silicon is a non metal element. Atomic Mass number of it is 28.
Just add the protons and the neutrons. The answer is 14.
if it is a discovered element, look up its atomic number. that is a count of the number of protons in an atom of that element. the number of protons can also be determined by the magnetic charge with no electrons.
Isotopes of an element are identified by the mass number, which is the sum of protons and neutrons in the nucleus of an atom. This isotope notation is written as element symbol followed by the mass number. For example, carbon-12 and carbon-14 are two isotopes of carbon with mass numbers 12 and 14, respectively.
take nitrogen as an example it has an atomic number of 7 that determines the number of protons as 7 positive charges so it takes 7 negative charges (electrons) to even it out so you have 7 electrons and protons. then you take the atomic mass which is 14.01 but you can round it to 14. then you take the atomic number and atomic mass and subtract them (14-7=7) so the number of neutrons is 7.
mass no. = no. of protons + no. of neutrons
A silicon-28 atom has 14 protons, 14 neutrons, and 14 electrons. The number of protons determines the element (silicon in this case), the sum of protons and neutrons gives the atomic mass of the isotope (28 in this case), and the number of electrons balances the charge to make the atom electrically neutral.
The mass number is equal to the sum of protons and neutrons in an atom. Since the element has 14 electrons and 15 neutrons, it must have 15 protons (atomic number is equal to number of protons). So, the mass number would be 15 + 15 = 30.
The isotope carbon 14: Atomic number = number of protons = number of electrons = 6 Atomic mass: 14,003241
Just add the protons and the neutrons. The answer is 14.
An element with an atomic number of 14, such as silicon, would have 4 valence electrons. Valence electrons are the electrons in the outermost energy level of an atom, which corresponds to the group number of the element on the periodic table.
if it is a discovered element, look up its atomic number. that is a count of the number of protons in an atom of that element. the number of protons can also be determined by the magnetic charge with no electrons.
Nitrogen is a non metal element. Mass number of it is 14.
The number of protons for any element is the atomic number. The number of electrons is equal to the number of electrons. To find the number of nuetrons you must subtract the atomic number from the mass number mass number-atomic number= number of nuetrons protons=electron the number of protons in the element aluminum is 13. The number of electrons is 13.
Isotopes of an element are identified by the mass number, which is the sum of protons and neutrons in the nucleus of an atom. This isotope notation is written as element symbol followed by the mass number. For example, carbon-12 and carbon-14 are two isotopes of carbon with mass numbers 12 and 14, respectively.
take nitrogen as an example it has an atomic number of 7 that determines the number of protons as 7 positive charges so it takes 7 negative charges (electrons) to even it out so you have 7 electrons and protons. then you take the atomic mass which is 14.01 but you can round it to 14. then you take the atomic number and atomic mass and subtract them (14-7=7) so the number of neutrons is 7.
an element always has as many electrons as protons...... the Atomic Number equals the number of protons. So if your atomic number is 13......you have thirteen protons.....and therefore 13 electrons
Careful silicone is a name given to a class of compounds of silicon.Silicon has an atomic number 14 so has 14 electrons.