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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.
Wiki User
∙ 10y ago
Wiki User
∙ 14y agoAll 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).
Wiki User
∙ 13y agoNo.
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.
Wiki User
∙ 15y agoThe 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.
Wiki User
∙ 14y agoIts atomic number is 17 and its mass number is 35 (= 17 +18).
Wiki User
∙ 13y ago17, to balance the charge of a neutral atom.
G-0294-18 RAMANG
mass number = number of protons + number of neutrons
so,
mass number = 17 + 18 = 35
Wiki User
∙ 10y agoBecause chlorine-35 -17 =18 35.45=35
Wiki User
∙ 14y agoan isotope
Wiki User
∙ 12y agoYes.
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Which refrigerants contain the most chlorine?
CFC'S
Which oxyanion of chlorine contains the most oxygen atoms?
Perchlorate, ClO4-
How many protons neutrons electrons in the nucleus of chlorine?
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.
How many neutrons does the element carbon have?
Carbon 12 the most common contains 6 Carbon 13 contains 7 Carbon 14 contains 8
Atoms in sulfur?
The most common isotope of a sulphur atom has 16 electrons, 16 protons, and 16 neutrons.
What does it indicate that most chlorine atoms contain 18 neutrons?
As a matter of fact, there are 18 neutrons in the chlorine atom.
Most atoms contain one or more?
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.
What don't most hydrogen atoms contain?
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.
Can an atom exist without neutrons?
Yes. Most hydrogen atoms do not contain neutrons. All other atoms do.
How many protons electrons and neutrons are in boron?
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.
Chlorine has an average atomic mass of 35.45 atomic mass unit. the to naturally occording isotopes are Chlorine-35 and Chlorine-37 Why does this indicate that most chlorine atoms contain 18 neutrons?
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.
Are all particles alike in hydrogen?
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.
Why does this indicate that most chlorine atoms contain 18 neurrons?
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.
Most matter of earth is made up of these small particles?
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.
How do the numbers of protons neutrons and electrons for an element compare?
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.
How many protons and neutrons are in an chlorine?
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".
What is true about elements molecules and atoms?
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.
