The valence electrons are located in an atom's outermost energy level
<h3>Further explanation </h3>
In an atom, there are levels of energy in the shell and subshell
This energy level is expressed in the form of electron configurations.
Electrons fill the orbitals based on the Aufbau principle, namely the filling of electrons starts from the lowest energy level
Usually used in describing Lewis structures, placed around the element
Each orbital in an atom consists of 4 quantum numbers : n, l, ml, ms
Each electron has a different quantum number and this conforms to Pauli's rule: no electrons have the same 4 quantum numbers
Valence electrons are electrons used in a chemical bond , and in an atom's outermost energy level
Noble gas has a stable electron configuration of 8 valence electrons which guides the formation of chemical bonds called the octet rule
Answer:
exothermic reaction
Explanation:
I think this because this is an example of an exothermic reaction is the chemical reaction between sodium and chlorine, which results in the formation of sodium chloride (also known as common salt)
Answer:
Since oxygen (O) has an atomic mass of 16 g, oxygen gas (O2) has a molecular mass of 2 x 16 = 32 g. We need to convert the given amount of oxygen gas to moles and this can be done by dividing the given mass by the molecular weight of oxygen gas. Hence, moles of oxygen gas = 48 g / 32 g/mole = 1.5 moles.
Explanation:
BARK BARK Hope it helps
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4.8 g/cm3 with sig figs since it's mass/volume you divide 76 grams by 16 cm3
