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Name: Argon
Symbol: Ar
Atomic Number: 18
Atomic Mass: 39.948 amu
Melting Point: -189.3 °C (83.85 K, -308.74 °F)
Boiling Point: -186.0 °C (87.15 K, -302.8 °F)
Number of Protons/Electrons: 18
Number of Neutrons: 22
Classification: Noble Gas
Crystal Structure: Cubic
Density @ 293 K: 1.784 g/cm3
Color: Colorless Gas
Number of Energy Levels: 3
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 8
Isotope Half Life Ar-36 Stable Ar-37 35.0 days Ar-38 Stable Ar-39 269.0 years Ar-40 Stable Ar-41 1.8 hours
Date of Discovery: 1894
Discoverer: Sir William Ramsay
Name Origin: From the Greek word argon(inactive)
Uses: Lighting
Obtained From: air
An atom with 18 electrons also has 18 protons. In a neutral atom, the number of protons must equal the number of electrons.
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How many electrons does a chlorine atom have if it has 17 protons and 18 neutrons?
A chlorine atom with 17 protons will also have 17 electrons to maintain neutrality. The number of neutrons (18) does not affect the number of electrons in an atom.
If a neutral atom contains 18 protons how many electrons does it contain?
A neutral atom contains the same number of electrons as protons. Therefore, an atom with 18 protons will also have 18 electrons to maintain an overall neutral charge.
An atom has 15 protons and 18 neutrons How many electrons does it have?
An atom with 15 protons has 15 electrons to balance the charge. The number of neutrons does not affect the number of electrons in an atom.
Number of electrons in argon?
In any neutral atom, the number of electrons is the same as the number of protons, and that is defined as the atomic number of the atom. The atomic number of argon is 18; therefore, each atom contains 18 electrons.
How do you know how many electrons argon has?
Argon has 18 electrons because it possesses 18 protons in its nucleus, making it electrically neutral. The number of electrons in an atom is equal to the number of protons in the nucleus.
How many electrons does a chlorine atom have if it has 17 protons and 18 neutrons?
A chlorine atom with 17 protons will also have 17 electrons to maintain neutrality. The number of neutrons (18) does not affect the number of electrons in an atom.
If a neutral atom contains 18 protons how many electrons does it contain?
A neutral atom contains the same number of electrons as protons. Therefore, an atom with 18 protons will also have 18 electrons to maintain an overall neutral charge.
An atom has 15 protons and 18 neutrons How many electrons does it have?
An atom with 15 protons has 15 electrons to balance the charge. The number of neutrons does not affect the number of electrons in an atom.
An atom has what number of protons and electrons?
An atom has the same number of protons as electrons since they are electrically neutral.
Number of electrons in argon?
In any neutral atom, the number of electrons is the same as the number of protons, and that is defined as the atomic number of the atom. The atomic number of argon is 18; therefore, each atom contains 18 electrons.
How many protons and electrons does chlorine have?
Chlorine has: 17 Protons 17 Electrons (in a neutral atom i.e. not an ion) (Isotope Mass Number - 17) is the number of Neutrons.
How do you know how many electrons argon has?
Argon has 18 electrons because it possesses 18 protons in its nucleus, making it electrically neutral. The number of electrons in an atom is equal to the number of protons in the nucleus.
How many protons and electrons does a chloride ion have?
Protons = 17, electrons = 18There are two isotopes differing in neutron number only :Cl-35 (75%) having 35-17= 18 neutronsCl-37 (25%) having 37-17= 20 neutrons
How many protons and electrons are in one atom of chlorine?
One atom of chlorine contains 17 protons and 17 electrons. The number of protons determines the element's identity, while the number of electrons balances out the positive charge of the protons to keep the atom electrically neutral.
How many protons and electrons does argon have?
i will say 18 neutrons and electrons
How is the charge of the atom or ion determined from the number of protons neutrons and electrons present?
The charge of an atom or ion is determined by the difference between the number of protons and electrons. If the number of protons is greater than the number of electrons, the atom or ion has a positive charge; if the number of electrons is greater than the number of protons, it has a negative charge. The number of neutrons does not affect the charge of the atom or ion.
How many electrons are in argon - 40?
Argon-40 has 18 electrons. This is because argon has an atomic number of 18, which indicates the number of protons (and electrons) in a neutral atom of argon.
