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An element's number of protons is the same as its atomic number. Thus, an atom with 21 protons has the atomic number 21. By looking up this element on the Periodic Table, one finds that it is scandium.
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How many electrons are in Cr-52?
There are 24 protons in Chromium (including Chromium54) of any isotope. Isotopes are just elements with different numbers of neutrons. If it is called chromium it has 24 protons. The atomic number of an element is the same as the number of protons.
How can you tell how many neutrons are in an element?
The number of neutrons in an element is determined by subtracting the atomic number from the atomic mass number rounded to the nearest whole number. On the other hand, very few atoms are abnormal and have a different amount of neutrons than other atoms of the same element. These are called isotopes and are indicated by a number following the element symbol (eg. C-14). This is a radioactive isotope of carbon that has six protons based on the atomic number and two more neutrons than normal--8. (8+6=14). Finally, the reason that the atomic mass units end in decimals is that this is just an average weight. The isotopes can either bring this number up or down. atomic number [ 6 ] symbol [ C ] mass (atomic mass units (amu)) [ 12.01 ]
How many electrons in fructose?
The chemical formula for fructose is C6H12O6, which means that each molecule of fructose has 6 atoms of C (carbon), 12 atoms of H (hydrogen), and 6 atoms of O (oxygen). The atomic numbers of carbon, hydrogen, and oxygen, respectively, are 6, 1, and 8. This means that, unless ionically charged, a fructose molecule should have (6x6) + (12x1) + (6x8) = 96 electrons.
What is the size difference between protons electrons and neutrons?
Protons and neutrons are approximately the same size, with a diameter of about 1 femtometer (10^-15 meters). Electrons are much smaller, with a radius of about 0.00000000000002 femtometers, making them almost negligible in size compared to protons and neutrons.
How many electrons in nitrite?
The equation for nitrite is NO2-. To find the valence electrons of each atom, count how many groups from the left of the periodic table (skipping over the d-block, which is shown in this picture in the related link. So Nitrogen has 5, and each oxygen has 6. The negative sign means that the polyatomic ion has one extra electron, so 1 more. 5+(6*2)+1=18 total valence electrons.
what element has 21 protons 21 electrons and 24 neutrons?
chromium
How many electrons neutrons and protons are in scandium?
Because its atomic number is 21, it has 21 protons, 21 neutrons, and 21 electrons.
What element has 24 electrons?
The element with 24 electrons is Chromium (Cr), which has an atomic number of 24.
How many protons electrons and neutrons in chromium?
There are 24 protons in Chromium (Cr). The atomic number of an element is the same as the number of protons.
How many protons neutrons and electrons are in Sc atomic number 44?
Sc is actually atomic number 21, there are 21 protons, 21 electrons, and usually 24 neutrons
What are the numbers of protons and neutrons of 45 21Sc?
21 protons, 21 electrons and 24 neutrons in 21Sc45 isotope.
How many neutrons does the element Sc have?
The element Scandium (Sc) has 21 protons in its nucleus, which can be determined using its atomic number. To find the number of neutrons, we can subtract the atomic number from the atomic mass: Scandium has an atomic mass of approximately 45. This gives us 45 - 21 = 24 neutrons in a Scandium atom.
How many protons neutrons and electrons in scandium?
No.of protons of scandium is 21 (ATOMIC NUMBER) ATOMIC NO=no.of proton or electron MASS NO=no of proton+ no.of neutron
How many electrons on chromium?
24, considering that an electron has a negative charge and the number of protons (positivley charged) is 24, an atom has to be neutrally charged
How many electrons does each neutral chromium atom have?
24 electrons, remember the atomic number of an element tells you how many protons it has. The number of protons = the number of electrons (if the atom isnt charged)
What element has 24 protons and charge of 3?
Any particle with 24 protons, despite the number of neutrons or the charge, is chromium.
How many protons and electrons does Fe2 plus have?
Fe 2+ (Iron) has... 26 protons 24 electrons 30 neutrons
