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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
PLEASE KEEP YOUR QUESTIONS IN THE PROPER CATEGORY
What else can I help you with?
How do you get a small 2 and 4 in H2SO4?
To show that there are two hydrogen atoms and four oxygen atoms in sulfuric acid (H2SO4), the numbers are placed as subscripts next to the elements: H2SO4. This indicates that the ratio of hydrogen to sulfur to oxygen atoms in sulfuric acid is 2:1:4.
What is the sum of the oxidation numbers of all the atoms in the peroxydisulfate ion S2O82?
The sum of the oxidation numbers of all the atoms in the peroxydisulfate ion (S2O82-) is equal to the overall charge of the ion, which is -2. Since each oxygen atom has an oxidation number of -2, and there are 8 oxygen atoms, the total contribution from oxygen is -16. This means that the sum of the oxidation numbers of the sulfur atoms must be +14 in order to balance the charge.
What is the name given to atoms of the same element that have the same number of protons?
Atoms of the same element cannot have different numbers of protons. Different numbers of protons mean different elements. An atom with the a different number of neutrons is called an isotope.
What does the letters and numbers in the chemical formula fe2o3 mean?
The chemical formula Fe2O3 represents a compound made of two iron (Fe) atoms and three oxygen (O) atoms. The numbers in the formula indicate the ratio of each element in the compound.
What does the 2 mean in 3H2?
The 2 in 3H2 represents the number of hydrogen atoms present in the compound. This means there are two hydrogen atoms in one molecule of 3H2.
Counting the numbers of atoms of each element in Mg3(PO4)2?
How many atoms are in Mg3(PO4)2
How do you get a small 2 and 4 in H2SO4?
To show that there are two hydrogen atoms and four oxygen atoms in sulfuric acid (H2SO4), the numbers are placed as subscripts next to the elements: H2SO4. This indicates that the ratio of hydrogen to sulfur to oxygen atoms in sulfuric acid is 2:1:4.
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 does the 2 in the symbol CI 2 mean?
The meaning is 2 chlorine atoms.
What is the sum of the oxidation numbers of all the atoms in the peroxydisulfate ion S2O82?
The sum of the oxidation numbers of all the atoms in the peroxydisulfate ion (S2O82-) is equal to the overall charge of the ion, which is -2. Since each oxygen atom has an oxidation number of -2, and there are 8 oxygen atoms, the total contribution from oxygen is -16. This means that the sum of the oxidation numbers of the sulfur atoms must be +14 in order to balance the charge.
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 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.
What does it mean if two atoms are isotopes?
If two atoms are isotopes, it means they have the same number of protons but different numbers of neutrons. Thus, they have the same atomic numbers, but different atomic masses.
What does couple mean in numbers?
In numbers, couple means 2.
How many total atoms are in P2O5?
In the chemical formula P2O5, there are 2 phosphorus (P) atoms and 5 oxygen (O) atoms. To find the total number of atoms, you simply add these numbers together: 2 + 5 = 7. Therefore, there are a total of 7 atoms in P2O5.
How do you find the mean of two numbers?
-- Add the two numbers. -- Divide their sum by 2 . -- The quotient is the mean of the two numbers.
