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Two. One hydrogen atom has one valence electron, so two hydrogen atoms will have two valence electrons :)
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How many valence electrons do atoms in period 1 have?
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
How many valence electrons does CH3CO-OH have?
Through covalent bonding, the nitrogen atom will have 8 valence electrons, the hydrogen atoms will each have 2 valence electrons, and the chlorine atom will have 8 valence electrons.
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.
What do these valence electrons do that make them are so important in chemistry?
the number of valence electrons determine the reactivity of the atoms
Why do atoms with the same number of valence of electrons have similar chemical properties?
Because atoms with the same number of valence electrons react in similar ways with other elements.
Is an atoms number of protons is always the same as its number of valence electrons?
For neutral atoms, the electron number is always the same as the proton number.For ions, charged atoms, the proton number is different than the electron number by the charge (e.g. a hydrogen ion, H(+1) has 1 proton and 0 electrons, 1 more proton than electrons).
How many valence electrons do atoms in period 1 have?
Hydrogen has 1 valence electron, whereas helium has 2 valence electrons.
How many valence electrons in H2 atom?
H2 is not an atom, it is a diatomic molecule. Each hydrogen atom has 1 valence electron. When two hydrogen atoms covalently bond to form an H2 molecule, there are two valence electrons being shared by the two atoms.
how many hydrogen atoms must be bond to silicon to give it an octet of valence electrons?
Silicone has 4 valence electros so it would need 4 hydrogen atoms to give itself an octet of valence electrons.
How many valence electrons does HBr have?
Hydrogen has 1 valence electron. Bromine has 7 valence electrons. When hydrogen and bromine react, the bromine atom 'steals' the hydrogen atom's only electron. The hydrogen atom then has no electrons and the bromine atom has 8 valence electrons. The two atoms are now ions because their number of protons does not equal their number of electrons. The bromine atom is now a bromide anion and the hydrogen atom is now a hydrogen cation (a proton). The two ions remain together, ionicly bonded and together are called hydrogen bromide.
The ability of atoms to combine with other atoms is determined by?
The number of electrons of both atoms and its valence number.
How many valence electrons does CH3CO-OH have?
Through covalent bonding, the nitrogen atom will have 8 valence electrons, the hydrogen atoms will each have 2 valence electrons, and the chlorine atom will have 8 valence electrons.
The chemical properties of an atom depend on the number of what?
It depends on the number of electrons in the outer valence shell in the 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.
What do these valence electrons do that make them are so important in chemistry?
the number of valence electrons determine the reactivity of the atoms
What is the number of valence electrons for atoms of oxygen?
6
Why do atoms with the same number of valence of electrons have similar chemical properties?
Because atoms with the same number of valence electrons react in similar ways with other elements.
