0
No; not if it is an ion. A chlorine atom, for example, has 17 protons and 17 electrons, but a chlorine ion (like when it is in sodium chloride, which is table salt) has 17 protons and 18 electrons. So, if you see an element with 18 electrons, it could be a chlorine ion, an argon atom, or a potassium ion.
What else can I help you with?
What information could you use to determine the atomic number of an unknown element that has the mass number of 22?
To determine the atomic number of an unknown element with a mass number of 22, you would need to know the number of protons in the nucleus of the element. Since the mass number is the sum of protons and neutrons, subtracting the number of neutrons from the mass number would give you the atomic number. This is because the atomic number represents the number of protons in an element's nucleus.
How many electrons does he have in outer shell?
To determine the number of electrons in the outer shell of an atom, you need to know its atomic number or its position in the periodic table. The outer shell electrons are also known as valence electrons, and their number varies depending on the element. For example, elements in Group 1 have 1 valence electron, while those in Group 18 have 8 valence electrons (except for helium, which has 2). If you specify the element or atom in question, I can provide the exact number of outer shell electrons.
What is a specific element of how to determine the number of protonsneutronsand electrons in an atom?
To determine the number of protons, neutrons, and electrons in an atom, you first need to know the atomic number, which represents the number of protons and, in a neutral atom, also the number of electrons. The mass number, which is the sum of protons and neutrons, can be used to calculate the number of neutrons by subtracting the atomic number from the mass number. For example, if an atom has an atomic number of 6 (carbon) and a mass number of 12, it has 6 protons, 6 electrons, and 6 neutrons (12 - 6 = 6).
What do you need to find the chemical element for an atom?
To identify the chemical element of an atom, you need to know its atomic number, which is the number of protons in its nucleus. Each element has a unique atomic number that distinguishes it from others. Additionally, knowing the number of electrons can help determine its charge and chemical behavior, while the number of neutrons can provide insight into its isotopes.
What information would you need to know to identify the element?
Just the atomic number would do it - or the number of protons - or the number of electrons
If you know the number of electrons in a neutral atom can you determine what the element is?
Yes, in a neutral atom the number of electrons and protons is equal, and it is the number of protons that determines what element the atom is. So, by looking at the number of electrons you can tell what element it is.
Can you use the mass number of an element to determine the number of electrons in an atom?
No, the mass number of an element is the sum of protons and neutrons in the nucleus. To determine the number of electrons, you would need to know the atomic number of the element, which is equal to the number of protons. Electrons in a neutral atom equal the number of protons.
What information can you gather knowing the atomic number and mass of an element?
If you know the atomic no. and atomic mass, then the no. of electrons, no. of protons and no. of neutrons can also be determined. Atomic No.=No. of electrons = No. of protons. No. of neutrons=Atomic mass-Atomic no. Also, by no. of electrons you can determine its valency and the no. of valence electrons.
How do you know how many unpaired electrons are in an element?
You can determine the number of unpaired electrons in an element by examining its electron configuration. Unpaired electrons are found in the outermost energy level, and you can count them by looking for half-filled or singly occupied orbitals in the notation of the element.
How do you know how many electrons an element has?
atomic number
Can you determine whether the atoms are the same element with out looking at the nuclei?
To a certain extent yes. In a balanced element the number of electrons match the number of protons in the core of the element. If electrons have been added or removed (as in an ion) then you would need to know the exact number added/removed, or rebalance the element, in order to determine the specific element.
What information could you use to determine the atomic number of an unknown element that has the mass number of 22?
To determine the atomic number of an unknown element with a mass number of 22, you would need to know the number of protons in the nucleus of the element. Since the mass number is the sum of protons and neutrons, subtracting the number of neutrons from the mass number would give you the atomic number. This is because the atomic number represents the number of protons in an element's nucleus.
How do you work out the number of valence electrons in a substance?
To determine the number of valence electrons in an element, look at its group number on the periodic table (group 1-18). The group number represents the number of valence electrons the element has. For example, elements in group 1 have 1 valence electron, while elements in group 18 have 8 valence electrons (except for helium, which has 2).
Why are group important in the periodic table?
groups are important in the periodic table because from them we get to know about the chemical and the physical property of an element. we also get to know about the number of electrons in the outer most shell.
If an element gains electrons what type of oxidation number does it have and how do you know?
If an element gains electrons, it has a negative oxidation number. The oxidation number is determined based on the number of electrons gained or lost by an atom in a compound. The rule is that in ionic compounds, the oxidation number of an element is equal to the charge it would have if it were an ion.
How many electrons does he have in outer shell?
To determine the number of electrons in the outer shell of an atom, you need to know its atomic number or its position in the periodic table. The outer shell electrons are also known as valence electrons, and their number varies depending on the element. For example, elements in Group 1 have 1 valence electron, while those in Group 18 have 8 valence electrons (except for helium, which has 2). If you specify the element or atom in question, I can provide the exact number of outer shell electrons.
What is a specific element of how to determine the number of protonsneutronsand electrons in an atom?
To determine the number of protons, neutrons, and electrons in an atom, you first need to know the atomic number, which represents the number of protons and, in a neutral atom, also the number of electrons. The mass number, which is the sum of protons and neutrons, can be used to calculate the number of neutrons by subtracting the atomic number from the mass number. For example, if an atom has an atomic number of 6 (carbon) and a mass number of 12, it has 6 protons, 6 electrons, and 6 neutrons (12 - 6 = 6).
