0
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
What else can I help you with?
Does the valence electrons equal the number of protons?
No, the number of valence electrons does not necessarily equal the number of protons in an atom. The number of valence electrons is determined by the group number of the element in the periodic table, while the number of protons is the atomic number of the element.
How many valence electrons do atoms in period 1 have?
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
What is the number of protons in the nucleus or the number the electrons in the energy levels called?
The number of protons in the nucleus is called the atomic number and is equal to the number of electrons in a neutral atom.
Does an element's number of valence electrons equals the element's number of protons?
Only hydrogen and helium have the stated property. For all heavier elements than these two, the number of valence electrons is less than the total number of electrons, which must be the same as the number of protons in all neutral atoms.
How many protons neutrons and valence electrons does sulfur have?
16 protons and 16 electrons as the atomic number of sulfur is 16. 16 neutrons in S-32 isotope.
Is the number of valence electrons equal to the number of protons?
No, the number of valence electrons is not always equal to the number of protons. The number of valence electrons is determined by the group number of an element on the periodic table, while the number of protons is the atomic number of the element.
Does the valence electrons equal the number of protons?
No, the number of valence electrons does not necessarily equal the number of protons in an atom. The number of valence electrons is determined by the group number of the element in the periodic table, while the number of protons is the atomic number of the element.
How many protons and eletrons does carbon have?
count the number of protons which will be equal to number of electron.
What is equal to the number of protons and is different for each element?
electron
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.
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.
What electron has 51 protons and 72 electrons?
This electron would have 51 protons and 51 electrons. The number of electrons in an atom is equal to the number of protons, as atoms are electrically neutral.
Atomic number is equal to?
no of the protons or the no of electron is equal to the atomic no denoted by the symbol Z
What is the charge of an atom that has an equal number of protons and electron?
It is a neutral atom
How many valence electrons do atoms in period 1 have?
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
What is the number of protons in the nucleus or the number the electrons in the energy levels called?
The number of protons in the nucleus is called the atomic number and is equal to the number of electrons in a neutral atom.
How do you get the number of an electron in an atom?
The number of electrons is equal to the number of protons (atoms are neutrally charged but ions are not). The number of protons is the atomic number (look at a periodiic table).
