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UkoKoshka [18]
3 years ago
12

Why does electronegativity decrease from right to left within a period?

Chemistry
1 answer:
Firlakuza [10]3 years ago
4 0

Explanation:

so, as you move down a group on the periodic table, the electronegativity of an element decreases because the increased number of energy levels puts the outer electrons very far away from the pull of the nucleus. electronegativity increases as you move from left to right across a period on the periodic table.

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A chemical reaction that produces electricity would be.
Goshia [24]

Answer:

Exothermic

Explanation:

Exothermic describes a process or reaction that releases energy

8 0
2 years ago
In general the human ear is most sensitive to sounds at 2500 hz. Assuming that sound moves at 330m/s what is the wavelength of s
elena-s [515]

Answer:

0.132 meters is the wavelength of sounds to which people are most sensitive.

Explanation:

Frequency of the sound human ears are most sensitive to = \nu = 2500Hz=2500 s^{-1}

Speed of the sound wave = S = 330 m/s

Wavelength of the sound human ears are most sensitive to = \lambda = ?

\nu=\frac{S}{\lambda }

2500 s^{-1}=\frac{330 m/s}{\lambda }

\lambda =\frac{330 m/s}{2500 s^{-1}}=0.132 m

0.132 meters is the wavelength of sounds to which people are most sensitive.

3 0
3 years ago
what pressure will be needed to reduce the volume of 77.4 l of helium at 98.0 kpa to a volume of 60.0 l? 76 kpa 126 kpa
nekit [7.7K]
The system follow the Boyle's Law:

P_1\cdot V_1 = P_2\cdot V_2\ \to\ P_2 = \frac{P_1\cdot V_1}{V_2} = \frac{98\ kPa\cdot 77.4\ L}{60.0\ L} = \bf 126.4\ kPa
6 0
3 years ago
I NEED THIS NOW NO LINKS OR ILL REPORT PLZZZ
IRISSAK [1]
#2 reactivity is the answer
5 0
3 years ago
What is the maximum number of electrons in the following energy level? n = 3
11Alexandr11 [23.1K]
Answer is: 18 electrons.

<span>The principal quantum number (n) is one of four quantum numbers which are assigned to each electron in an atom to describe that electron's state.
The azimuthal quantum number (l) is a quantum number for an atomic orbital that determines its orbital angular momentum and describes the shape of the orbital, l = 0....n-1.</span>

<span>For n = 3, l = 0, 1, 2.</span>

<span>l = 0, s orbital with 2 electron.</span>

<span>l = 1, p orbitals with 6 electrons.</span>

<span>l = 2, d orbitals with 10 electrons.</span>

<span>2 + 6 + 10 = 18 electrons.</span>


8 0
4 years ago
Read 2 more answers
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