Science Chemistry Mass number How is the atomic number of an atom determined?Question:How is the atomic number of an atom determined?Atom:The atom is the basic unit of all matter on Earth and in the Universe.
Answer to: The mass number of an atom depends primarily on the number of a. protons and neutrons. b. positrons. c. neutrons and electrons. d...
The mass of an atom in atomic mass units (called the atom's istopic mass) si numerically close to the atom's Aatomic number Bmass number Catomic weight DatomicitySubmit The mass of an atom of nitrogen is A146.023×1023g B286.023×1023g C16.023×1023g D14uSubmit The mass of an ato...
To determine whether the statement "The mass number of the atom of an element is the sum of the number of protons and neutrons in the atom" is true or false, we can follow these steps:1. Understanding Mass Number: - The mas
这句话的意思是 “为了测量原子的质量,科学家采用了原子质量单位(amu)” 。从语法角度来看,“To measure the mass of an atom” 是动词不定式作目的状语,表示目的,“scientists” 是主语,“adopted” 是谓语,“amu” 是宾语,句子结构完整,语法正确。从语义角度,在科学领域,科学家确实采用原子质量单位(amu)来测量...
2 CHEMISTRY-RELATIVE ATOMIC MASSthe mass of a hydrogen atom 1/1H is equal to 1/12 of the mass of a carbon-12 atomso its relative isotopic mass is 1.A magnesium atom 24/12Mg is twice as heavy as a carbon-12 atom,so its relative isotopic mass is 24再给另一个例子不要用英文角度...
molecular mass (amu) = molar mass (grams) 1 molecule SO 2 = 64.07 amu 1 mole SO 2 = 64.07 g SO 2 Calculating the Mass and the Number of Atoms in a Given Number of Moles of an Element PROBLEM: amount(mol) of Ag mass(g) of Ag (a) Silver (Ag) is used in jewelry and table...
An atom is the smallest unchangeable component of a chemical element. Unchangeable means in this case by chemical means; i.e., by reactions with acids or bases or the effect of moderate temperatures, atoms may only be slightly changed, namely, in their degree of ionisation. Moderate ...
Here we note the interesting fact that the numerator in the exponent of Eq. (40.1) is the potential energy of an atom. Therefore we can also state this particular law as: the density at any point is proportional to e^{−\text{the potential energy of each atom}/kT}. That may be an...
1. The relative atomic mass of an element is always D I A the mass of an atom of the element relative to %2 the mass of a carbon-12 atom. B the mass of an atom of the element relative to the mass of a hydrogen atom.■ C the weighted mean mass of an atom of the element ...