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the number which is written on the lower left or right side of the symbol of the element = mass number = no. of protons + no. of neutrons
the number which is written on the upper left side of the symbol of the element = atomic number = no. of protons = no. of electrons (because in a neutral atom i.e. which does not have any charge , no. of electrons = no. of protons)
and
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What does 2Fe mean?
that means 2 iron atoms
What are the oxidation numbers of the atoms in the MnO4- ion?
+7 for Mn -2 for each O
What is the sum of the oxidation numbers of all the atoms in the peroxydisulfate ion S2O82?
+6 2x-12-2=-2 2x=12 x=6 This is because there are 1 peroxy bond in S2O82- because of which 2 of the 8 oxygen atoms have -1 oxidation state other 6 Oxygen atoms have -2
What is a chemical formula that shows the numbers and kinds of atoms in a molecule but is not the arrangement of the atoms?
A molecular formula shows the numbers and kinds of atoms in a molecule but not the arrangement of the atoms.
What is the oxidation number of C in CH3COOH?
Assuming you mean what is the oxidation number of each atom in the compound C3H8O? Oxidation rules state the the sum of all oxidation numbers in a neutral molecule equals 0. 1. O = -2 2. H = +1 3. C = -2 These numbers are derived from... (-2) + (+1 x 8) + (-2 x 3) = 0
Counting the numbers of atoms of each element in Mg3(PO4)2?
How many atoms are in Mg3(PO4)2
How many atoms in 1 oxygen atoms?
One! You may mean to ask how many atoms there are in one molecule of oxygen, in which case the answer is two.
What does the 2 in the symbol CI 2 mean?
The meaning is 2 chlorine atoms.
What if there are 2 numbers in the median?
If there are 2 numbers as the median, you find the mean of those 2 numbers. (add both numbers and divide by 2)
What is the sum of the oxidation numbers of all the atoms in the peroxydisulfate ion S2O82?
+6 2x-12-2=-2 2x=12 x=6 This is because there are 1 peroxy bond in S2O82- because of which 2 of the 8 oxygen atoms have -1 oxidation state other 6 Oxygen atoms have -2
What is the oxidation number of C in CH3COOH?
Assuming you mean what is the oxidation number of each atom in the compound C3H8O? Oxidation rules state the the sum of all oxidation numbers in a neutral molecule equals 0. 1. O = -2 2. H = +1 3. C = -2 These numbers are derived from... (-2) + (+1 x 8) + (-2 x 3) = 0
What is a chemical formula that shows the numbers and kinds of atoms in a molecule but is not the arrangement of the atoms?
A molecular formula shows the numbers and kinds of atoms in a molecule but not the arrangement of the atoms.
What is the mean in math terms?
Mean refers to the average of a group of numbers. To find the mean, you add the numbers together and divide by the amount of numbers in the group. For instance, find the mean of 1, 2, 3 Add the numbers together. 1+2+3=6 3 numbers were in the original set of numbers so divide by 3 6/3=2 The mean is 2.
What atoms containing the same numbers of protons and different numbers of neutrons are?
These atoms are called isotopes.
What are the numbers of atoms in 0.250 mole sulfur?
The numbers of atoms in 0,250 mole sulfur is 1,50553521425.10e22.
What are whole numbers are not divided by 2?
I guess you mean: what are the whole numbers not divisible by 2? A: The odd numbers.
How do you find a mean?
To find the mean of numbers, add all of the numbers together and then divide them by the number of numbers there are. For example if I want to find the mean of 1, 2, and 3. 1+2+3= 6 and there are 3 numbers that I am using to find the mean (1, 2, and 3). So I divide 6 by 3 and get 2 which is the mean.
