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Why are all atomic numbers integers?
1 3 5 9
What were Avogadro's contributions to science?
He proposed in 1811, his famous hypothesis, now known as Avogadro's Law. The law stated that equal volumes of all gases at the same temperature and pressure contain the same number of molecules. His law helped to overcome John Dalton's atomic theory. Avogadro also distinguished between an atom and a molecule, to determine a table of atomic weights. Correction and standardization of atomic weights began in 1858, when Stanislao Cannizzaro, an Italian chemist, reminded other chemists about Avogadro's work.
Are the fractions 2436 and 1624 equivalent or not?
2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.2436 and 1624 are integers, not fractions. And, as integers, they are unequal.
What type of decay is shown in 238 94 Pu 4 2 He xyZ?
A very unlikely type of decay.Plutonium is found as isotopes with atomic weights in the range 238 to 244. Your equation seems to involve plutonium with another 39-78 neutrons! Making it an extremely unlikely (if not impossible) isotope.A very unlikely type of decay.Plutonium is found as isotopes with atomic weights in the range 238 to 244. Your equation seems to involve plutonium with another 39-78 neutrons! Making it an extremely unlikely (if not impossible) isotope.A very unlikely type of decay.Plutonium is found as isotopes with atomic weights in the range 238 to 244. Your equation seems to involve plutonium with another 39-78 neutrons! Making it an extremely unlikely (if not impossible) isotope.A very unlikely type of decay.Plutonium is found as isotopes with atomic weights in the range 238 to 244. Your equation seems to involve plutonium with another 39-78 neutrons! Making it an extremely unlikely (if not impossible) isotope.
What are the three categories of integers?
The set of integers is divided into three subsets. One is the positive integers. Another is the negative integers. The last subset has one element -- zero. In sum, integers are composed of the positive integers, the negative integers, and zero.
Why do atomic weights are in fraction?
Because atomic weights must be measured in fractions.
Why are atomic weights realitive weights?
Actually weights are too small and are hard to work with.
The atomic weight of Br is the of the atomic weights of Cl and l?
The atomic weight of Br (Bromine) is the sum of the atomic weights of Cl (Chlorine) and I (Iodine). This is because bromine falls between chlorine and iodine in the periodic table, thus its atomic weight is approximately the average of the atomic weights of chlorine and iodine.
What does atomic mass really tell you?
Total count of protons + neutrons. To be really anal, it is an average of the weights of the atomic nuclei of a specific element from the known isotopes of that element. Notice on a periodic chart the naturally occuring elements have weights in fractional (decimal) units, while most synthetic (man-made) elements are integers (whole) numbers as little to nothing is known about their isotopes. Atomic Weight = Atomic Number (proton count) + neutron count
What is often used in place of atomic weights?
Relative atomic masses are often used in place of atomic weights. They represent the weighted average of the masses of the isotopes of an element relative to the mass of a carbon-12 atom.
Base weight a system of comparing atomic weights to carbon is it true or false?
True. The term "base weight" is used in comparing atomic weights where the atomic weight of carbon-12 is set as the reference standard with a value of exactly 12 atomic mass units. Other elements are compared relative to this standard to determine their atomic weight.
What are the atomic weights of two isotopes of the element number?
both the atomic number and the atomic mass remain the same
What has the author Edward Vogel written?
Edward Vogel has written: 'The atomic weights are, under atmospheric pressure, not identical with the specific gravities' -- subject(s): Atomic weights
What is the mass of a mole of NaCl measured by?
The mass of one mole of NaCl is the sum of the atomic weights for sodium and chlorine in grams. The atomic weights are found on the periodic table.
Total number of protons and neutrons in the atom is?
The total number of neutrons in an atom is known as its atomic mass. The sum of all the atomic weights of isotopes of a particular element is known as an element's atomic weight. Atomic weights are decimal numbers for this reason.
Are atons of an element having the same atomic no but different atomic weights?
Yes, and they are called isotopes.
How to tell protons neutrons mass numbers atomic weights from periodic table?
Protons: Protons are the positively charged particles found in the nucleus of an atom. The number of protons in an atom is equal to its atomic number, which is listed on the periodic table. Neutrons: Neutrons are the neutral particles found in the nucleus of an atom. To determine the number of neutrons, subtract the atomic number (number of protons) from the mass number (rounded atomic weight). Mass number: The mass number of an atom is the sum of its protons and neutrons. It is usually rounded to the nearest whole number if not a whole number. Atomic weight: Atomic weight is the average mass of an element's isotopes, taking into account the abundance of each isotope in nature. It is listed on the periodic table underneath the element's symbol.
