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Atomic Mass

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

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What is the atomic mass of calcium carbonate?

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Calcium Carbonate does NOT have Atomic Mass. It has MOLECULAR Mass, because it is a molecule, that is a combination of three elements, calcium, carbon and oxygen. .

Calcium Carbonate has the molecular formula 'CaCO3'.

So from the Periodi Table of elements, we read the ATOMIC Masses for these three elements. viz.

1 x Ca = 1 x 40 = 40

1 x C = 1 x 12 = 12

3 x O = 3 x 16 = 48

40 + 12 + 48 = 100 The MOLECULAR mass of Calcium Carbonate.

NB Atomic Masses only refer to elements in the Periodic Table.

Which element has the highest atomic mass?

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  • Name: Ununoctium
  • Symbol: Uuo
  • Atomic Number: 118
  • Atomic Mass(AMUs): 294
  • Group In Periodic Table: 18
  • Group Name: Noble gas
  • Period In Periodic Table: 7
  • Colour: unknown, NaN, but probably a colourless gas
  • Classification: Non-metallic

What is the atomic mass number for Cn?

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The atomic mass number (or mass number) for Cn, which stands for Copernicium, is 285.

What is the atomic mass of steel?

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The atomic mass of steel cannot be determined as it is an alloy made up of multiple elements, primarily iron and carbon, along with trace amounts of other elements. The atomic mass of steel will depend on the specific composition of the alloy.

What has an atomic number of 17 and atomic mass of 35?

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The element with an atomic number of 17 and atomic mass of 35 is chlorine (Cl).

How do you calculate atomic mass unit of gold?

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The atomic mass unit (amu) is a unit of mass used to express the average mass of an atom or molecule. To calculate the atomic mass unit of gold (Au), you would look at the atomic mass of gold on the periodic table, which is approximately 197 amu.

What is the atomic mass of Li?

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The atomic mass of Li, which stands for lithium, is approximately 6.94 atomic mass units (u).

What is the atomic number and atomic mass number for an isotope of Lu with 106 neutrons?

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The atomic number of an element is the number of protons in the nucleus. For the element Lu (lutetium), the atomic number is 71. The atomic mass number is the sum of the number of protons and neutrons in the nucleus. Therefore, an isotope of Lu with 106 neutrons would have an atomic mass number of 177 (71 protons + 106 neutrons = 177).

What is a compound consisting of small atomic mass more likely to require?

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A compound consisting of small atomic mass is more likely to require less energy for its formation. This is because lighter elements have fewer protons and neutrons, resulting in weaker intermolecular forces and lower energy requirements for bonding. Additionally, smaller atoms have a higher reactivity, making it easier for them to participate in chemical reactions and form compounds.

How do you calculate the atomic mass and what is its unit of measurement?

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The atomic mass of an element is calculated by taking the weighted average of the masses of its isotopes, based on their relative abundance. The unit of measurement for atomic mass is the atomic mass unit (amu) or unified atomic mass unit (u). 1 amu is defined as 1/12th the mass of a carbon-12 atom, which is approximately equal to the mass of a proton or a neutron.

Can the atomic mass of individual atoms of an element vary?

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No, the atomic mass of individual atoms of an element does not vary. The atomic mass listed on the periodic table is an average value that takes into account the different isotopes (atoms with different numbers of neutrons) of the element and their abundance in nature. Individual atoms of the same element will have the same atomic mass.

Is there an element that has the same atomic number and atomic mass?

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No, there is no naturally occurring element with the same atomic number and atomic mass. The atomic mass of an element is the weighted average of the masses of its isotopes, which have different numbers of neutrons. The atomic number of an element is the number of protons in its nucleus, which determines its identity. Therefore, the atomic number and atomic mass are different for each element.

Where does the 0.5 in chlorine's atomic mass come from?

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The atomic mass of chlorine is a weighted average of the masses of all its naturally occurring isotopes, taking into account their abundance. Chlorine has two main isotopes, chlorine-35 (with an atomic mass of approximately 34.97) and chlorine-37 (with an atomic mass of approximately 36.97). The 0.5 difference in the atomic mass comes from the relative abundance of these isotopes in nature.

What is the atomic mass of magnesuim?

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The atomic mass of magnesium is approximately 24.3 atomic mass units.

What is the atomic mass of phosohorous?

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The atomic mass of phosphorus is approximately 31. Although it can vary slightly depending on the isotope of phosphorus, the most common isotope, phosphorus-31, accounts for the majority of naturally occurring phosphorus.

What is the atomic mass of magnessium?

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The atomic mass of magnesium is approximately 24.305 atomic mass units (amu).

What is the atomic mass of europium?

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The atomic mass of europium is approximately 151.964 amu (atomic mass units).

What is the atomic mass of the element cobalt Co on the periodic table?

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The atomic mass of cobalt (Co) is approximately 58.93 atomic mass units (amu).

Which hazard classdivision (HCD) is non-mass explosion fragment producing?

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A non-mass explosion fragment producing hazard class/division is typically classified as either Class 1.4 or Division 1.4.

What happens to the atomic mass number in a radioactive substance?

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In a radioactive substance, the atomic mass number may change as a result of radioactive decay. During radioactive decay, radioactive atoms undergo nuclear reactions, which can lead to the emission of radioactive particles such as alpha or beta particles. These emitted particles can cause a change in the number of protons and neutrons in the nucleus, resulting in a different atomic mass number for the resulting atom or isotope.

Which sample contains the same number of atoms as a gram atomic mass of he?

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A gram atomic mass of helium (He) contains the same number of atoms as 1 mole of helium. Since 1 mole of any substance contains approximately 6.022 x 10^23 atoms, a sample of helium with a gram atomic mass would contain that same number of atoms.

How do you draw a orbital diagram for hydrogen with the atomic mass of 3 and atomic number of 1?

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To draw the orbital diagram for hydrogen with an atomic mass of 3 and atomic number of 1, you start by writing the electron configuration as 1s1. Since hydrogen has only one electron, it occupies the 1s orbital. The orbital diagram would show a single electron in the 1s orbital, depicted as ↑.

What is the atomic mass of boran?

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The atomic mass of boron, which is the element to which boran refers, is approximately 10.81 atomic mass units (amu).

Why is it important to use a weighted average when determining the average atomic mass of your element?

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It is important to use a weighted average because different isotopes of an element have different atomic masses due to the presence of different numbers of neutrons. The abundance of each isotope also varies, meaning some isotopes are more common than others. By using a weighted average, the more abundant isotopes have a greater contribution to the overall average atomic mass of the element, providing a more accurate representation.

What is kryptons average atomic mass number?

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The average atomic mass number of Krypton is approximately 83.8 atomic mass units.