There are 3 significant figures in this number.
Three significant figures are in 2.87
4
Neutrons = 207 - 82 = 125
82. Lead is an element with symbol Pb and atomic number 82. The atomic number relates to the amount of electrons of the element
Lead
217 centimeters = 7.12 feet.
If you look on the periodic table, you will find that the atomic number for lead is 82. This means that there will always be 82 protons. Next, assuming that there are not ions, the number of elections is also 82. Finally, you can see that the mass number of Pb is 207. 207-82=125 so there are 125 neutrons if you are referring to the most common isotope.
207 is a composite number. Its factors are: 1, 3, 9, 23, 69, and 207
Lead is a metal element. Atomic mass of it is 207.
207 is not a prime number because it gets divided by 3.
The number 207 is "two hundred seven."
It is 207/3 = 69.
Lead is a metal element. Atomic Mass number of it is 207.
207 is an integer and so there is no sensible way of writing it as a mixed number.
3 x 3 x 23 = 207
atomic mass equal to number of protons and neutrons. If Pb has a mass of 207 and an atomic number of 82, that means that there are 82 protons in Pb, which also means there should be 82 electrons. That leaves neutrons, which would be 207-82=125 neutrons.
Neutrons = 207 - 82 = 125
Factors are numbers you can multiply together to get another number. 207: 1, 3, 9, 23, 69, 207
His number is (207) 538-2094 its area code 207 since he lives in Buckhead.