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Over [174]
3 years ago
6

What is tantalum's electron configuration?

Chemistry
2 answers:
kotykmax [81]3 years ago
7 0

Answer: Xe 4f14 5d3 6s2

Explanation:

lakkis [162]3 years ago
4 0

Answer:

Xe 4f14 5d3 6s2

Explanation:

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klasskru [66]
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In volunteering, your primary motivation is to extend your help or assistance and make other people happy. Seeing people happy because of what you are doing, it the ultimate reward of volunteering. Happiness gained from this experience is priceless. It is worth more than any freebies or any material gains you will receive. 
8 0
3 years ago
What is true when a reaction has reached equilibrium?
ASHA 777 [7]

Answer:

I think its `b

Explanation:

6 0
3 years ago
Read 2 more answers
. A bright violet line occurs at 435.8 nm in the emission spectrum of mercury vapor. What amount of energy, in joules, must be r
Tom [10]

Answer :  The energy released by an electron in a mercury atom to produce a photon of this light must be, 4.56\times 10^{-19}J

Explanation : Given,

Wavelength = 435.8nm=435.8\times 10^{-9}m

conversion used : 1nm=10^{-9}m

Formula used :

E=h\times \nu

As, \nu=\frac{c}{\lambda}

So, E=h\times \frac{c}{\lambda}

where,

\nu = frequency

h = Planck's constant = 6.626\times 10^{-34}Js

\lambda = wavelength = 435.8\times 10^{-9}m

c = speed of light = 3\times 10^8m/s

Now put all the given values in the above formula, we get:

E=(6.626\times 10^{-34}Js)\times \frac{(3\times 10^{8}m/s)}{(435.8\times 10^{-9}m)}

E=4.56\times 10^{-19}J

Therefore, the energy released by an electron in a mercury atom to produce a photon of this light must be, 4.56\times 10^{-19}J

3 0
4 years ago
What is the volume of a gas if 0.182 moles of the gas is at 1.99 atm and 83.4oC?
Sunny_sXe [5.5K]

Answer:

2,67 L

Explanation:

8 0
2 years ago
M + e - M-1<br>Is M oxidized or reduced?​
bazaltina [42]

Answer:

Reduced  

Explanation:

M + e⁻ ⟶ M⁻

Reduction is the gain of an electron.

3 0
3 years ago
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