Answer:
Answer is <u>C</u>
Step-by-step explanation:
This is because Lithium =2.8.1
Sodium=2.8.8.1
<em>Valence</em><em> </em><em>electron</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>electron</em><em> </em><em>located</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>last</em><em> </em><em>shell</em>
Hope this is correct and helpful
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The answer i believe is 4000
Answer:
36
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
y² - 7y + 6
y = -3
<u>Step 2: Evaluate</u>
- Substitute in <em>y</em>: (-3)² - 7(-3) + 6
- Exponent: 9 - 7(-3) + 6
- Multiply: 9 + 21 + 6
- Add: 30 + 6
- Add: 36
Two at the top (side by side)
Two at the bottom ☝
One on right side
One on left side
And grandfather in the middle