It would have 17 electrons. All chlorine atoms would have 17 electrons because they are electrically neutral, which means that number of protons (of charge +1) would be equal to number of electrons (of charge -1). This is true for all isotopes of chlorine.
All Chlorine atoms have 17 protons.
However, ISOTOPES exist, which are atoms with varying numbers of neutrons.
(A Chlorine atom with 17 neutrons would not be considered an isotope, because it has the same number of neutrons as protons)
It is impossible to tell how many neutrons a particular atom has, (unless you have some really high tech equipment to work with) so for the sake of chemistry, we sample a bunch of atoms of a given element (Chlorine, in this case) and take the average number of neutrons. We add that decimal to the number of protons that the element ALWAYS has, and end up with the average atomic number.
On the Periodic Table, the average atomic number is listed underneath the Cl symbol as 35.45. This means that the average Cl atom has 17 protons and just over 18 neutrons (17 + 18 = 35).
SO, the best answer to your question is "An isotope of Chlorine has 17 protons and 18 neutrons."
**I would review the definitions for atomic number and mass number. Also look up how isotopes are written (with numbers to the left of the element's symbol).
No.
17 is the total number of electrons.
When you refer to valence electrons, you only look at the last shell of the atom.
In chlorine, the electron configuration is 2.8.7, thus chlorine has 7 valence electrons.
The number of protons is an atom's defining characteristic. Those 17 protons are what gives chlorine the properties of chlorine. With 18 protons it would be not chlorine, but would be argon.
Its atomic number is 17 and its mass number is 35 (= 17 +18).
17, to balance the charge of a neutral atom.
mass number = number of protons + number of neutrons
so,
mass number = 17 + 18 = 35
Because chlorine-35 -17 =18 35.45=35
an isotope
Yes.
CFC'S
Perchlorate, ClO4-
Chlorine atom has 17 protons and 17 electrons. The number of neutrons depends on the isotope considered. Chlorine has four isotopes: Cl-35, Cl-36, Cl-37 and Cl-38 with 18, 19, 20 and 21 neutrons respectively. However out of these, Cl-35 and Cl-37 are the most stable isotopes.
Carbon 12 the most common contains 6 Carbon 13 contains 7 Carbon 14 contains 8
The most common isotope of a sulphur atom has 16 electrons, 16 protons, and 16 neutrons.
As a matter of fact, there are 18 neutrons in the chlorine atom.
In fact all atoms contain one or more protons and an equal number of electrons. Most atoms contain one or more neutrons, the exception being Hydrogen atoms which have none.
Most hydrogen atoms don't contain any neutrons. Deuterium atoms are hydrogen atoms with one neutron each, and tritium atoms are hydrogen atoms with two neutrons each, but most hydrogen atoms are protium atoms, with no neutrons at all. All other atoms in the universe except protium contain at least one neutron each.
Yes. Most hydrogen atoms do not contain neutrons. All other atoms do.
All boron atoms contain 5 electrons and 5 protons. Atoms of the most abundant naturally occurring isotope of boron contain 6 neutrons each, and atoms of the only other naturally occurring isotope of boron contain 5 neutrons each.
This has to due with the abundance of each. Lets break it down for a moment.The mass number is the sum of the number of protons and the number of neutrons. All chlorine atoms have 17 protons, so if we so a little subtraction, we can find out that there are 18 neutrons in 35Cl (Chlorine-35) and 19 neutrons in 37Cl. Another important piece of information that we need to know is that the atomic mass is an average of its isotopes. So lets say that there are equal amounts of 35Cl and 37Cl (50% of each). If we calculated the atomic mass (the average of the two), we would get a number that's directly in-between 35 and 37 since they are found in equal amounts in nature. Then the atomic mass would be 36.But we know this isn't true. There are not equal amounts of each isotope in nature; therefore, the atomic mass will not fall directly between the two masses of isotopes. The atomic mass of chlorine is 35.45, which means one isotope is more abundant than the other. Since 35.45 is closer to the weight of 35Cl, we know there is more of that isotope than 37Cl. Then, because we already figured out that there are 18 neutrons in 35Cl, we can officially say that most chlorine atoms have 18 neutrons.
No. Not all hydrogen atoms (particles) are the same. Most do not contain any neutrons, but there are some that do contain 1 or even 2 neutrons. So, they are different.
Normal chlorine is Cl-35. 35 represents the combined number of protons and neutrons. If you subtract the atomic number of 17 from this, you get 18, which is your neutron count. You can do this for every element; just take the atomic mass number, round it to the nearest whole number, then subtract the atomic number to get the neutrons.
Everything in the universe is made up of quarks, electrons, gluons, and a few others that we know of. Actuallly the answer is atoms. Most matter of earth is made up of these small particles are elctrons, protons, and neutrons. In other words, an atom.
In the neutral state, all atoms of the same element contain equal numbers of protons and electrons. However, most elements have atoms with different numbers of neutrons. These are called isotopes.
Chlorine found on the earth is a mixture of two stable (non-radioactive) isotopes, Cl-35 and Cl-37. All chlorine atoms, by definition, have 17 protons in the nucleus. The Cl-35 atoms, which make up most (75.77%) of the total, have 35-17 = 18 neutrons, while the Cl-37 atoms, which make up 24.23% of the total, have 37-17 = 20 neutrons. You can find these numbers on Wikipedia for any chemical element. Look for the bottom of the element properties sidebar on the right side of the page for the section "Most stable isotopes".
Most atoms contain three main substances which are Protons neutrons and electrons. Protons and neutrons usually define the Atomic mass which is in the units g/mol. The outer most electron in an atom are called the valance shell electron and for the most part decide the atoms bonding properties.