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Atomic Mass

Atomic mass is the mass of protons, neutrons, and electrons in a single specific atom.

1,752 Questions

What is the atomic mass of flurine?

Fluorine is a non metal element. Atomic mass of it is 19.

How does the atomic mass and number relate to chemical property?

Straight up, atomic number identifies the element. And it is determined solely by the number of protons in the nucleus of that atom. The electron count will match the proton count in a neutral atom. Neutron count, and, therefore, atomic mass, can vary because there are different isotopes of a given element around. Just as one example, most hydrogen has a single proton for a nucleus, but some hydrogen has a neutron attached to that proton. In even rarer cases, hydrogen can have two neutrons hanging onto that proton. Here's one element, with one set of chemical characteristics, and three different atomic masses. Best to go with atomic number than atomic mass when considering chemical properties.

Is the atomic radius the same as the atomic mass?

No, the atomic radius and atomic mass are not the same. The atomic radius refers to the size of an atom, typically measured as the distance from the nucleus to the outer electron cloud. On the other hand, atomic mass is the mass of an atom, which is the sum of the protons and neutrons in the nucleus.

Is atomic mass and molar mass similar and mass number of particles the same?

Atomic mass and molar mass are similar concepts but not the same. Atomic mass refers to the average mass of an atom of an element, while molar mass is the mass of one mole of a substance. The mass number of particles can be the same in certain cases, such as isotopes of the same element which have the same number of protons and different numbers of neutrons.

Which element has a atomic mass of 118.69?

The element with the atomic mass of 118.69 is tin, symbol Sn.

Why context switch must be atomic?

Context switch must be atomic to ensure that the state of the system remains consistent during the switch. This is important because a context switch involves saving the state of the current process and loading the state of the next process. If the switch is not atomic, it could lead to data corruption or inconsistencies in the system, resulting in unpredictable behavior.

What does the atom do when the electron moves from lower to higher energy level?

When an electron moves from a lower to a higher energy level, it absorbs energy and jumps to a higher orbit. This process is known as excitation. The electron can then release this absorbed energy as light when it moves back down to a lower energy level.

What calculation should be used to calculate the correct average atomic mass of chlorine?

To calculate the average atomic mass of chlorine, you would take the abundance-weighted average of the isotopes of chlorine. This involves multiplying the atomic mass of each isotope by its relative abundance (in decimal form), then summing all the products.

What is atomic mass number minus protons?

atomic mass number - protons = number or neutrons

What is the atomic mass of sulfuric acid?

Sulphuric Acid does NOT have an Atomic Mass. It has a Molecular Mass, because it is a molecule, not an atom.

Refer to the Periodic Table.

The formula for sulphuric acid is H2SO4

This tells us that there are two atoms of hydrogen , one atom of sulphur and four atoms of oxygen.

So from the Periodic Table we read off the atomic masses for each element.

Hence

2 x H = 2 X 1 = 2

1 x S = 1 xs 32 = 32

4 x O = 4 x 16 = 64

2 + 32 + 64 = 98 the Molecular mass of sulphuric acid.

Why is an elements atomic mass not listed as a whole number on the periodic table?

Most elements have more than one isotope stable against radioactive decay, and these isotopes, each of which individually has an integral mass number, occur naturally in amounts that do not lead to integral average gram atomic masses.

What does a non enhancing mass mean?

A non-enhancing mass typically refers to a lesion or abnormal tissue growth that does not show increased contrast uptake on imaging studies like MRI or CT scans. This can indicate a benign or stable condition, but further evaluation and monitoring may be needed to confirm the nature of the mass.

Why do atomic mass numbers have decimals for oxygen?

The mass number is the sum of protons and neutrons in the atomic nucleus of chemical elements. All mass numbers are integers.

The atomic weight is not an an integer because is calculated taking in the account the isotopic composition of an element; also the mass excess has a role.

What is the atomic number and atomic mass of iodine?

The atomic number of iodine (I) is 53.

The atomic weight of I is 126.90 grams per mole.

Iodine is a diatomic molecule, I2.

See the Web Links to the left of this answer for a periodic table with more information about this element!

What is polypoidal mass?

A polypoidal mass refers to a growth that appears as a polyp or protrusion from a surface, typically seen in certain medical conditions like polyps in the colon or nasal polyps. These masses can vary in size and shape and may require medical evaluation and treatment to determine if they are benign or potentially cancerous.

The atomic mass of an atom is 46 and it has 22 neutrons. How many electrons does it have?

46.
That answer is incorrect. If the atom has 22 neutrons, then it must have 24 protons to make up the total mass of 46. A neutral atom always has the same number of electrons as protons so the correct answer is 24.

How relative atomic mass of an atom can be determined?

The relative atomic mass of an atom can be determined by averaging the masses of its isotopes based on their abundance in nature. This value is reported relative to the mass of a carbon-12 atom, which has been assigned a relative atomic mass of exactly 12.ø

What is the atomic mass of galluim?

Gallium is a metal element. Atomic mass of it is 70.

Which is not a reason why the mass of an atom is expressed in atomic mass units rather than in grams?

The main reason the mass of an atom is expressed in atomic mass units rather than in grams is that the mass of an individual atom is extremely small, typically in the range of 10^-23 grams. Using grams would result in cumbersome decimal numbers, while atomic mass units simplify calculations and comparisons of atomic mass.

What is the atomic mass of Rb?

Rubidium is a metal element. Atomic mass of it is 85.

What is the number of atomic mass of a certain atom that has 22 protons 22 electrons and 27 neutrons?

The atomic mass number of an atom equals the sum of the numbers of neutrons and of protons; in this instance, 27 + 22 = 49.

Which element has an atomic mass of 83.3?

The closest one is krypton, which has a mass of 83.80 according to the periodic table in my Handbook of Chemistry and Physics.

Which element has an atomic mass of 40.1?

The element with an atomic number of 40 is zirconium.

What is an element with an atomic mass of 47.9?

Titanium (Ti) has an atomic mass of approximately 47.9. It is a transition metal known for its strength and corrosion resistance, commonly used in aerospace and industrial applications.

How many neutral atoms does atomic number 117 and atomic mass of 294 have?

An atom's atomic number corresponds to the number of protons in its nucleus, so an element with an atomic number of 117 has 117 protons. Since the atomic mass is 294, which accounts for the total number of protons and neutrons in the nucleus, we can subtract the atomic number from the atomic mass to find the number of neutrons: 294 (atomic mass) - 117 (atomic number) = 177 neutrons. Therefore, an atom of element 117 with an atomic mass of 294 would have 117 protons and 177 neutrons, resulting in 117 neutral atoms.