Unformatted text preview: reaction between me in my diatomic form and an alkali metal residing in the fourth period. Answer: Cl 2 + 2 K → 2 KCl 5. Write the ground state electron configuration for Ni. Answer: [Ar] 4s 2 3d 8 OR: 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 8 6. Draw a Lewis dot structure for: H 2 CO O C H H O H H C OR 3. The element potassium consists of only three naturally occurring isotopes. What is the mass of potassium-41, written to three significant figures? (See the table below.) Isotope Percent Abundance Mass (amu) potassium-39 93.2581 % 38.963707 potassium-40 0.0117 % 39.963999 potassium-41 ? ? Answer: 41.0 amu...
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- Fall '11
- Atom, Chemical element, following neutralization reaction