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Rarely. The number of valence electrons of an element depends on it's position on the Periodic Table. Any given element can have between 1-8 valence electrons. The number of valence electrons increases left to right on the periodic table, while the number of protons, which determine the Atomic Mass and identity of an element, increase in general. Therefore the number of valence electrons can only equal the number of protons at the 8th element and below (neon).
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoWrong. Electrons (not valence electrons) are equal to protons and atomic number.
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Do valence electron equal the number of protons?
The number of electrons usually does not equal the number of protons. Valence means outermost. In an electrically neutral atom (which in Gen Chem is the only atoms you will be dealing with) the number of outermost electrons usually does not equal the number of protons. Chlorine has 7 valence electrons but it has 17 protons and if it is electrically neutral (which in gen chem it almost always is) it has 17 electrons. Gen Chem 1: it has 2 electrons in the first shell then it has 8 electrons in the second shell then it has 7 electrons in the outermost shell Gen Chem 2: it has 2 electrons in the 1s orbital then it has 2 electrons in the 2s orbital then it has 6 electrons in the 2p orbital then it has 2 electrons in the 3s orbital then it has 5 electrons in the 3p orbital
Do protons and electrons have the same number?
Yes, the atomic number is equal to the number of protons. The number of protons is also equal to the number of electrons
How many electrons versus protons in an atom?
The number of electrons should = the number of protons.
What atom has 6 valence electrons and 10 core electrons?
Sulfur. It has six valence electrons. These six electrons plus the ten core electrons, 16, the atomic number (number of electrons or the number of protons [they are an equal amount because the positive and negative charges have to cancel each other out]). It is sulfur.
What element had the fewest valence electrons?
hydrogenhydrogen------------------------------------------------------Put the following elements in order, with the element having the most valence electrons at the top of your list and the element with the fewest valence electrons at the bottom.NEONCHLORINESULFURNITROGENSILICONBORONCALCIUMSODIUM
Is the number of valence electrons equal to the number of protons?
No, the number of total electrons is equal to the number of protons.
What is the valence number for helium?
He has 2 valence electrons. Look on a periodic table. It will show He only has 2 protons and the number of protons and electrons is equal. It is an exception to the rule of group numbers corresponding to valence numbers.
Are valence electrons the number of protons?
Only for hydrogen and helium are these two numbers the same. All other elements have at least two non-valence electrons, and the total number of electrons must be equal to the number of protons. Therefore, in all elements except hydrogen and helium, the number of valence electrons is less than the number of protons.
How many valence electrons does a neutral magnesium atom have?
12, the same as the number of protons indicated by magnesium having an atomic number of 12.
In an atom the number of what is equal to?
In an atom the number of electrons is equal to the number of protons. That is, in the case of an un-ionized, non valence bonded molecule... If the atom were ionized, it could have fewer or less electrons. If the atom were part of a valence bonded molecule, it could be sharing valence electrons with other atoms.
How many protons in carbons?
6 protons 6 neutrons 6 electrons 4 valence electrons
How many electrons does aluminum with an atomic number of 13 have in its valence shell?
None. the positive charges on the 13 protons and the negative charges on the 13 electrons cancel each other out
Do valence electron equal the number of protons?
The number of electrons usually does not equal the number of protons. Valence means outermost. In an electrically neutral atom (which in Gen Chem is the only atoms you will be dealing with) the number of outermost electrons usually does not equal the number of protons. Chlorine has 7 valence electrons but it has 17 protons and if it is electrically neutral (which in gen chem it almost always is) it has 17 electrons. Gen Chem 1: it has 2 electrons in the first shell then it has 8 electrons in the second shell then it has 7 electrons in the outermost shell Gen Chem 2: it has 2 electrons in the 1s orbital then it has 2 electrons in the 2s orbital then it has 6 electrons in the 2p orbital then it has 2 electrons in the 3s orbital then it has 5 electrons in the 3p orbital
How the atomic number related to the core electrons?
For a neutral (uncharged) atom, the total number of electrons is equal to the atomic number (number of protons). This would be the sum of the core electrons plus the valence electrons.
How can you use the periodic table to find the number of protons in one atom of an element?
valence electrons is the same as the number as the last digit in the group :)
Do protons and electrons have the same number?
Yes, the atomic number is equal to the number of protons. The number of protons is also equal to the number of electrons
What is the total number of valence electrons in a fluorine atom you n the ground state?
An atom of fluorine has 9 electrons in total. Electrons are equal to protons when the atom isn't an ion, and the number of protons is also the atomic number of the element, so you just need to know the atomic number to find out the number of electrons or protons.
