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What is the number of protons of an atom that has 18 electrons?
Wiki User
∙ 11y ago
the atom you are referring to, is actually the element Argon. An element is a substance that is just made up of one kind of atom. In this case, the atom you are talking about (Argon), has 18 protons.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoName: 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
Wiki User
∙ 13y agois 18
Wiki User
∙ 14y ago18.
Wiki User
∙ 14y ago18
Wiki User
∙ 11y ago18 protons
Anonymous
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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 electrons does a chlorine atom have if it has 17 protons and 18 neutrons?
17 electrons. The number of protons and electrons is always the same.
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 is the charge of the atom or ion determined from the number of protons neutrons and electrons present?
Atoms have protons, neutrons, and electrons. Protons and electrons have electric charge, but neutrons do not. Protons are positively charged, and electrons are negatively charged. An atom has the same number of protons and electrons. Because the atom has same amounts of positively and negatively charged particles, the atom is neutral and has no electric charge. The only time an atom becomes electrically charged is if it loses or gains protons or electrons to throw off the balance. For example, we know that hydrogen only has 1 proton, 1 neutron, and 1 electron. This hydrogen atom has not electric charge. Later on, the hydrogen atom gains a proton. This would mean that there is more positive charge than negative charge in the atom. The hydrogen atom is now electrically charged.
How many protons and electrons does argon have?
i will say 18 neutrons and electrons
An atom has what number of protons and electrons?
9 protons and 10 neutrons in F-19 isotope.
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.
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 electrons does a chlorine atom have if it has 17 protons and 18 neutrons?
17 electrons. The number of protons and electrons is always the same.
Select the answer that correctly indicates the number of protons and electrons for this atom or ion Sulfide ion?
16 protons and 18 electrons
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
Select the answer that correctly indicates the number of protons and electrons for this atom or ion CL-1?
Cl-1 has 17 protons and 18 electrons
How is the charge of the atom or ion determined from the number of protons neutrons and electrons present?
Atoms have protons, neutrons, and electrons. Protons and electrons have electric charge, but neutrons do not. Protons are positively charged, and electrons are negatively charged. An atom has the same number of protons and electrons. Because the atom has same amounts of positively and negatively charged particles, the atom is neutral and has no electric charge. The only time an atom becomes electrically charged is if it loses or gains protons or electrons to throw off the balance. For example, we know that hydrogen only has 1 proton, 1 neutron, and 1 electron. This hydrogen atom has not electric charge. Later on, the hydrogen atom gains a proton. This would mean that there is more positive charge than negative charge in the atom. The hydrogen atom is now electrically charged.
How many protons and electrons does argon have?
i will say 18 neutrons and electrons
How many protons are there in any Cl atom?
The atomic number of chlorine is 17. So there are 17 protons in chlorine.
An atom has 18 protons 18 electrons and 20 neutrons. This atom has?
This atoms has an atomic number of 18 and an atomic mass of 38.
An atom has 15 protons and 18 neutrons How many electrons does it have?
If the atom is neutral, then it will have 15 electrons to balance the 15 protons.
