Answer:
4.2 x 10^24
Explanation:
6.9 mol C4H10 x (6.022 x 10^23 molecules / 1 mol) = 4.2 x 10^24
6.022 x 10^23 is Avogadro's number
It is a constant and applies to molecules, atoms, or particles of 1 mol of anything.
Answer:
Characteristics. They are all relatively inert, corrosion-resistant metals. Copper and gold are colored. These elements have low electrical resistivity so they are used for wiring.
Explanation:
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Answer:
All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.
Explanation:
Answer: metals loss their valence electron during bonding to form a compound
Explanation:
Answer is: C) N.
Nitrogen (N) has greatest electronegativity.
Electronegativity (χ) is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.
Atoms with higher electronegativity attracts more electrons towards it, electrons are closer to that atom.
Nitrogen has electronegativity χ = 3 and other elements have less.