Every element in the Periodic Table contains at least two atoms joined up except for Hydrogen (H).
The elements a compound contains and the exact number of atoms of each element in one unit of that compound is referred to as the chemical formula of the compound.
One which is at least potentially correct.
In the chemical formula (3H_2SO_4), there are a total of 6 hydrogen (H) atoms, 3 sulfur (S) atoms, and 12 oxygen (O) atoms. This is calculated by recognizing that each (H_2SO_4) contains 2 hydrogen, 1 sulfur, and 4 oxygen atoms, and since there are 3 molecules of (H_2SO_4), you multiply the number of each element by 3.
In 3 formula units of (NH4)2HAsO4, there are 6 nitrogen (N) atoms, 24 hydrogen (H) atoms, 3 arsenic (As) atoms, and 12 oxygen (O) atoms. Each formula unit contains 2 nitrogen atoms, 8 hydrogen atoms, 1 arsenic atom, and 4 oxygen atoms. Therefore, multiplying by 3 gives the total number of atoms for each element.
A code for a compound that indicates the number of atoms of each element it contains is called a chemical formula. For example, in the formula H₂O, the "H" represents hydrogen and the "O" represents oxygen, with the subscript "2" indicating there are two hydrogen atoms and one oxygen atom in each molecule of water. This notation provides a clear and concise way to convey the composition of the compound.
The elements a compound contains and the exact number of atoms of each element in one unit of that compound is referred to as the chemical formula of the compound.
One which is at least potentially correct.
same number of each element
The name of the compound dinitrogen tetrahydride implies that the formula of the compound is N2H4. Therefore, each molecule contains two nitrogen atoms and four hydrogen atoms.
each element has one atom of the element's name
It is found everwhere, as in each and every biomolecule contains at least some hydrogen atoms.
In 2H2SO4, there are a total of 2 sulfur (S) atoms, 8 hydrogen (H) atoms, and 4 oxygen (O) atoms. Each molecule contains 2 hydrogen atoms, so the total count is doubled from the molecular formula.
The atomic number of an element tells you how many protons an atom of that element contains. This number is unique to each element and is found on the periodic table. The number of protons in an atom determines the element's identity.
The compound CaSO4 contains 1 calcium atom, 1 sulfur atom, and 4 oxygen atoms.
In the chemical formula (3H_2SO_4), there are a total of 6 hydrogen (H) atoms, 3 sulfur (S) atoms, and 12 oxygen (O) atoms. This is calculated by recognizing that each (H_2SO_4) contains 2 hydrogen, 1 sulfur, and 4 oxygen atoms, and since there are 3 molecules of (H_2SO_4), you multiply the number of each element by 3.
True. The number of atoms in a mole of an element is determined by Avogadro's number, which is a constant (6.022 x 10^23) regardless of the element being considered. Each element's molar mass in grams is equal to one mole of that element's atoms.
In 3 formula units of (NH4)2HAsO4, there are 6 nitrogen (N) atoms, 24 hydrogen (H) atoms, 3 arsenic (As) atoms, and 12 oxygen (O) atoms. Each formula unit contains 2 nitrogen atoms, 8 hydrogen atoms, 1 arsenic atom, and 4 oxygen atoms. Therefore, multiplying by 3 gives the total number of atoms for each element.