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Lorico [155]
3 years ago
8

How is the modern periodic table organized as one goes across a row from left to right?

Physics
2 answers:
Ket [755]3 years ago
7 0
The answer is C, increasing atomic number.
mash [69]3 years ago
7 0

Answer: Option (C) is the correct answer.

Explanation:

Elements in a periodic table are arranged according to the increase in atomic number.

So, when we move from left to right in a periodic table then there occurs an increase in atomic number because there occurs an increase in the number of electrons of the atoms.

And, in neutral atoms the number of electrons and number of protons are the same.

Therefore, we can conclude that modern periodic table organized by increasing atomic number as one goes across a row from left to right.

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A wave has a wavelength of 6 mm and a frequency of 9 hertz. What is its speed? what is the answer and units?
Lisa [10]
Answer:The speed is 54 mm/s, the units are mm/s.

Explanation:

1) Data:

a) λ = 6mm
b) f = 9 Hz = 9 s⁻¹
c) v = ?

2) Formula:

wave equation: v = f × λ

3)  Solution:

v = 9 s⁻¹ × 6mm

v = 54 mm/s

The speed is 54 mm/s, the units are mm/s.


5 0
3 years ago
True or False: The absorption of alcohol can be slowed down by eating, but only water can reduce the BAL level.
lesya [120]
A hopes this helps idk this
3 0
3 years ago
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What temperature resistivity of tungsten is 4 times resistivity of silver?
mihalych1998 [28]

Answer:

Slightly above 20°c

Explanation:

The resistivity of silver is 1.59 x 10-8Ωm{ as discovered by experiment from scientist}

The resistivity of tungsten at 20°c is 5.6x10-8Ωm

We see the value is just an approximation of 4 times not exactly.

6 0
3 years ago
A concave mirror has a radius of curvature of 1.6m. Find the focal length
Yuki888 [10]
Given,

Radius of curvature of concave mirror = 1.6m

We know that ,

Focal length = radius/2

Hence ,

Focal length of concave mirror = radius of concave mirror /2

=> F = 1.6/2

=> F = 0.8m

Hence the focal length of concave mirror is 0.8 m
5 0
2 years ago
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A runner begins a race from the starting line and accelerates to a speed of 8.9 m/s. If it takes the runner 3 seconds to reach h
stellarik [79]

Answer:

i believe its 26.7

Explanation:

if the runner goes 8.9 m/s each second while accelerating for 3 seconds to reach top speed, the top speed would be 26.7 m/s

4 0
2 years ago
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