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Mumz [18]
3 years ago
12

Mercury is in the 80th position in the periodic table. How many protons does it have?

Physics
2 answers:
ipn [44]3 years ago
3 0

Number of Protons = Atomic number = 80

so, Mercury has 80 protons...

Lera25 [3.4K]3 years ago
3 0

Answer: 80

Explanation:

Elements are arranged in periodic table in order of increasing atomic number.

Atomic number is defined as the number of protons or number of electrons that are present in an atom.

Atomic number = Number of electrons = Number of protons

Mercury (Hg) is a d block element and its atomic number is 80, thus it contains 80 protons and 80 electrons.

Electronic configuration represents the total number of electrons that a neutral element contains. We add all the superscripts to know the number of electrons in an atom.

Electronic configuration of mercury in terms of noble gas configuration is [Xe]4f^{14}5d^{10}6s^{2}.

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Answer:

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3 years ago
If a vector A has components A. 0, and Ay -0, then the magnitude of the vector is negative. Select one: True False
Dima020 [189]

Answer:

False

Explanation:

The magnitude of any vector is given by,

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So, magnitude of the vector is <u>not</u> negative.

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4 years ago
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8 0
1 year ago
After rubbing a balloon on your shirt, your hair sticks up when the balloon is near your head. Explain how tiny particles on you
skad [1K]
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3 0
2 years ago
1. A sprinter races in the 100 meter dash. It takes him 10 second to reach the finish line
poizon [28]

Answer:

v = 10 m/s

Explanation:

Given that,

Distance covered by a sprinter, d = 100 m

Time taken by him to reach the finish line, t = 10 s

We need to find his average velocity. We know that velocity is equal to the distance covered divided by time taken. So,

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Hence, his average velocity is 10 m/s.

6 0
3 years ago
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