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What is the weighed-average mass of all the known isotopes for an element called?
The weighted-average mass of all the known isotopes for an element is called the atomic weight or atomic mass. It is calculated by taking into account the abundance of each isotope and its mass to determine the average mass of all isotopes present in nature for that element.
Every balanced chemical equation each side has the same number of?
same number of each element
How many atoms of each element are shown in the formula for calcium carbonate?
In the formula for calcium carbonate (CaCO3), there is 1 calcium atom (Ca), 1 carbon atom (C), and 3 oxygen atoms (O).
If the number of atoms of each element in the products equals the number of atoms of each element in the reactants the equation is?
In this case, the equation is balanced.
The elements that make up a compound and the number of atoms of each element in a unit of the compound can be shown in a?
A molecular formula shows this information. In sulfuric acid, for example, the formula is H2SO4 as you'll learn to write it. There is hydrogen (H), sulfur (S) and oxygen (O) in it, and there are specifically 2 atoms of hydrogen, one atom of sulfur, and 4 atoms of oxygen. You already guessed (and correctly!) that those numbers, the numerical subscripts, tell an investigator how many of those particular atoms are in the molecule of sulfuric acid.
In a chemical formula the number of atoms of each element is shown by numbers called?
how many
The average atomic mass grams shown on the periodic table for each element is also the mass of?
one mole of atoms of the element
What shows how many atoms of each element are in a unit of substance?
The chemical formula shows you this. The subscripted number next to each element shows how many atoms are present in a molecule or formula unit. If no number is shown, then only one atom of that element is present.
What shows how many atoms of each element are in a unit of a substance?
The chemical formula shows you this. The subscripted number next to each element shows how many atoms are present in a molecule or formula unit. If no number is shown, then only one atom of that element is present.
The element that make up a compound and the exact number of atom of each element in a unit of the compound can be shown in a?
The exact number of atoms of each element in a unit of the compound can be shown in a chemical formula. Through the use of symbols, a chemical formula represents the proportions of atoms in a compound. For example, the chemical formula for water H2O indicates there are two hydrogen atoms and one oxygen atom.
How do you indentify the elements in a compounds chemical formula?
To identify elements in a compound's chemical formula, look for capital letters. Each capital letter represents a different element. The number of each element in the formula is shown by the subscript next to the element's symbol.
What is the number of atoms of each element?
each element has one atom of the element's name
How are isotopes placed in the periodic table?
Isotopes and their prevalence are not shown on the periodic table. Instead, the atomic weight shown for each element is an average of the atomic weights of all naturally-occurring isotopes (calculated from percentages occurring on Earth).
What law is shown by a balanced equation?
The law of conservation of mass is shown by a balanced chemical equation, which states that matter cannot be created or destroyed in a chemical reaction. This means that the number of atoms of each element must be the same on both sides of the equation.
The number shown on the top part of each of the element squares in a periodic table is the?
This depends on the periodic table but it is either the atomic number (the number of protons) or the atomic mass (the number of protons and neutrons). The integer number will be the atomic number and the larger number will be the atomic mass. The exception is hydrogen which has an atomic number of 1 and an atomic mass of 1 (very close to it).
What is the important of each element?
importance of element
What is the average atomic mass of the element with the isotopic abundances shown?
90.7 amu
