3 years ago

——-GIVING 45 POINTS—— How many dots belong in the electron dot diagram of a boron atom?

Mathematics

2 answers:

Vikki [24]3 years ago

7 0

Answer:The answer is eight electrons

Step-by-step explanation:

Firlakuza [10]3 years ago

4 0

Answer:

how would i know?

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Method 1

Apply Difference of Two Squares Formula: $a^2-b^2=(a+b)(a-b)$

Given $x^2-16=0$

Rewrite 16 as 4²

Therefore, $a^2=x^2$ and $b^2=4^2$

$\implies a = \sqrt{x^2}=x$

$\implies b=\sqrt{4^2} =4$

$\implies x^2-16^2=(x+4)(x-4)$

$\implies (x+4)(x-4)=0$

$\implies (x+4)=0 \implies x=-4$

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Method 2

Given equation:

$x^2-16=0$

Add 16 to both sides:

$\implies x^2-16+16=0 + 16$

$\implies x^2=16$

Square root both sides:

$\implies \sqrt{x^2}=\sqrt{16}$

$\implies x=\pm4$

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