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3 years ago

5

How many valence electrons does each atom of arsenic (As) have? Arsenic is element 33. It is in period 4 and family 15 (5A or th

e Nitrogen family).
(1 point)

15

33

5

4

2 answers:

vodka [1.7K]3 years ago

7 0

Answer:

It have 5 valence electrons

Anettt [7]3 years ago

5 0

Answer:5

Explanation:

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Answer:

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(a)

In an elastic collision, both momentum and energy is conserved.

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(b)

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$v_2' = \frac{2m_1}{m_1 + m_2}v_1 = \frac{2*2}{2+10}(5.2) = 1.73~m/s$

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The minus sign indicates that the first particle turns back after the collision.

(c)

The final kinetic energy of the particle in part (a) and part (b) is

$K_a = \frac{1}{2}m_1v_1'^2 = \frac{1}{2}(2\times10^{-3})(1.75)^2 = 0.0031 ~J\\K_b = \frac{1}{2}m_2v_1'^2 = \frac{1}{2}(2\times10^{-3})(3.45)^2 = 0.011~J$

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