If an atom with a mass number of 202 has 122 neutrons, it is an atom of which element? What is the difference between an atom and an element? The atomic number of oxygen is 8. What is the mass number of an oxygen atom with 7 neutrons?
An atomic number of an element is the number of protons in all the atoms of that element. Atomic numbers are always whole numbers greater than zero, such as 1,2,3... since an atom cannot have a fractional number of protons. What is the difference between an atomic number and a mass ...
Elemental nitrogen can be used as an inert atmosphere for reactions requiring the exclusion of oxygen and moisture. In theliquid state, nitrogen has valuable cryogenic applications; except for the gaseshydrogen, methane,carbon monoxide,fluorine, and oxygen, practically all chemical substances have neglig...
argonon,inert gas,noble gas- any of the chemically inert gaseous elements of the helium group in the periodic table air- a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a wind...
Atomic mass unit (AMU), in physics and chemistry, a unit for expressing masses of atoms, molecules, or subatomic particles. An atomic mass unit is equal to 1 12 the mass of a single atom of carbon-12, the most abundant isotope of carbon, or 1.660538921
17) The atomic number of nitrogen and oxygen is 7 and 8 respectively. Calculate the total number of electrons in a nitrate ion. a) 31 b) 23 c) 32 d) 38 ANSWER : 32 18) Calculate the number of unpaired electrons present in the ground state of Fe3+. (At.no of Fe =26) ...
How are theatomic numberand thenumber of protonsrelated to each other? How do thenumber of protons,number of neutrons, and themass numberrelate to each other? What is theone thingthat determines the identity of an atom (that is, whether it is an oxygen atom or a carbon atom, etc.)? Ch...
2、 atomic number and the number of protons related to each other?How do the number of protons, number of neutrons, and the mass number relate to each other?What is the one thing that determines the identity of an atom (that is, whether it is an oxygen atom or a carbon atom, etc....
Atomic structures and oxygen dynamics of CeO2 grain boundaries Bin Feng, Issei Sugiyama, Hajime Hojo, Hiromichi Ohta, Naoya Shibata & Yuichi Ikuhara Scientific Reports volume 6, Article number: 20288 (2016) Cite this article 5410 Accesses 62 Citations Metrics details Abstract Material performance is...