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What elements accounts for only 5 percent of the earth's crust?
The element that accounts for only about 5 percent of the Earth's crust is potassium (K). It is a relatively rare element compared to others like oxygen, silicon, and aluminum which are more abundant.
What element makes up 1.6 percent of the human body?
Calcium provides about 1.4-1.6 % of the mass of the human body. It is only .24 % of total number of atoms, but it weighs more than most. An adult person has about a kilogram of calcium in their body.
Why the average atomic mass makes sense when compared to the percent abundance?
The average atomic mass of an element reflects the weighted average of its isotopes based on their relative abundances. Since isotopes of an element have different masses, the average takes into account both the mass of each isotope and its percent abundance in nature. This means that isotopes that are more abundant have a greater influence on the average atomic mass, resulting in a value that accurately represents the composition of the element as found in nature. Thus, the average atomic mass provides a meaningful representation that aligns with the actual distribution of isotopes.
What chemical elements compose more than 98 percent of the sun?
The sun's composition is dominated by two primary chemical elements, which together account for more than 98 percent of its mass. Hydrogen, the lightest and most abundant element in the universe, makes up approximately 74 percent of the sun's mass. Helium, the second lightest element, comprises about 24 percent of the sun's mass, bringing the total to 98 percent. The remaining 2 percent consists of various heavier elements, including oxygen, carbon, nitrogen, and iron, among others.
How do you calculate the atomic weight of a chemical element that has two or more isotopes?
To calculate the atomic weight of an element with multiple isotopes, you multiply the mass of each isotope by its relative abundance (as a decimal), then sum the products. The result is the atomic weight of the element, which is a weighted average of the masses of its isotopes based on their abundance in nature.
What element makes up more than 70 percent of the sun?
helium
What element makes up more than 70 percent of the atmosphere?
Nitrogen
What element makes up 76 percent of air?
It is nitrogen and it makes more than 78% of the air.
Which element makes up more than 70 percent of the sun?
Hydrogen is 71% of the sun.
This element is the fifth most abundant element in the earth's crustand makes up more than 3 percent of the crust it reacts with water and is in the 2nd group of the periodic table this element is?
This element is calcium. It is the fifth most abundant element in the Earth's crust and makes up more than 3 percent of the crust. It reacts with water and belongs to the 2nd group of the periodic table.
What effect does wattage of an oven element have on its heat dissipation?
If they have a warming element, that will only use about 100 watts. Heating elements in a typical kitchen stove oven use 3000 watts or more. Heating elements in a typical kitchen stove oven use 3,000 watts or more. Convection ovens can use from 32 percent to 45 percent less power than standard ovens.
Which element makes up more in earth?
CARBON
What element makes a compound?
two or more different elements
What is the percent composition of ammonium carbonate?
Ammonium carbonate has the formula (NH4)2CO3. To calculate the percent composition, you first find the molar mass of each element and then divide the molar mass of each element in the formula by the formula mass of the compound and multiply by 100 to get the percentage.
Does The element with the largest subscript in a formula have the largest percent by mass in the compound?
Sometimes, but not necessarily: The largest percent by mass in a compound is that of the element for which the product of the subscript and the atomic weight is highest. For example, there is more carbon than hydrogen by mass in CH4.
What elements accounts for only 5 percent of the earth's crust?
The element that accounts for only about 5 percent of the Earth's crust is potassium (K). It is a relatively rare element compared to others like oxygen, silicon, and aluminum which are more abundant.
Does uranium contains more than 90 percent of one compound?
Uranium is a chemical element, not a compound.
