If an atom has an atomic number of 8, how many protons will it have? What is darmstadtium's atomic mass? What is effective atomic number? Is the atomic number equal to the number of electrons? What is the atomic mass of helium-4?
The mass number of an atom is the total number of protons and neutrons contained within the nucleus of the atom. The number of protons determines the element and will always equal the atomic number of that element. The number of neutrons can change and will determine which isotope of that ...
What is the mass of 4 atom(s) of copper in grams? If the atomic mass of an element is x, what is the mass in grams of 6.02 X 10^{23} atoms of the element? What is the mass in kilograms of a single atom of carbon? What is the average mass of a single silicon atom in grams?
If the atomic mass of an element is X, what is the mass in grams of 6.02 times 10^{23} atoms of the element? If 3 moles of an element have a mass of 222.0 g, what is the mass of 1 atom? Typically, the mass of an atom of an element in grams is closest to: a. 1023 b. ...
ICSEC - Grade 09 - CHEMISTRY - Atomic Structure And Chemical Bonding - Q23
That’s twice the density of lead or about 8 times that of granite. A cube 6 inches on a side (15 cm) of either would weigh as much as an average adult human. Ag Rh Pd Au Pt Re Ir Os Density (g/cm3) Some of the superheavy elements will probably turn out to be much denser...
It is 1.992648 xx 10^(-23) g ~~ 1.99 xx 10^(-23)g It can be obtained by dividing gram atomic mass of carbon (12 g) with Avogadro's No. (N(A)) ((12g))/(6.022xx10^(23))~~1.99xx10^(-23)g.
The mass of a carbon -12atom was determined by a mass spectrometer and found to be equal to 1.992648xx10^(-23)g is is known that 1 mole of C-12 atom weighing 12 g contains N(A) number of atoms Thus. 1 mole of C-12 atoms =12g= 6.022xx10^(23) atoms rAr
In an unstable atom the proton/neutron balance is slightly different from its stable form, resulting in the binding energy of the nucleus being out of balance. As elements get heavier, more neutrons must exist in the nucleus to balance out proton-proton repulsion forces. For instance, uranium-...
What is the mass of 4 atom(s) of copper in grams?Question:What is the mass of 4 atom(s) of copper in grams?Mass of an Atomic Mass Unit:Despite the extremely light weight of an atom, it is quite possible to convert the mass of a single atom into grams based on the mass of a ...