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velikii [3]
3 years ago
9

In general, a (an) metal will be more reactive than an alkaline earth metal in the same period.

Physics
1 answer:
Dmitriy789 [7]3 years ago
5 0

Alkali metal

Explanation:

In general, an alkali metal will be more reactive than an alkaline earth metal in the same period.

What determines reactivity of metals?

The electropositivity of metals determines how reactive they are.

  • Electropositivity or metallicity is a measure of the tendency of atoms of an element to lose electrons.
  • It is closely related to ionization energy and the electronegativity of an element.
  • The lower the ionization energy of an element, the more electropositive or metallic it is
  • Also, the more reactive it will be because, it can lose electrons more readily.
  • Across a period from left to right, electropositivity decreases and from top to down a group, it increases.
  • Since alkali metals are more electropositive than alkali earth metals, they are more reactive and readily lose their only electron.
  • This is why the most reactive metal is francium found in the lower left corner on the periodic table.
  • For non-metals, electronegativity is the most important factor.

Learn more:

Alkali metals brainly.com/question/6324347

Electronegativity brainly.com/question/11932624

#learnwithBrainly

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Answer:

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Explanation:

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The efficiency of the scissor is 200%.

<u>Explanation:</u>

Efficiency is defined as the ratio of output of any instrument or device or machine to the input supplied to it. So the greater the output the greater will be the efficiency of the device.

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How many significant digits are in the measurement 4,032,010 m/s?
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You throw a baseball directly upward at time ????=0 at an initial speed of 14.9 m/s. What is the maximum height the ball reaches
xeze [42]

Answer:

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Explanation:

It is given that,

The baseball is thrown directly upward at time, t = 0

Initial speed of the baseball, u = 14.9 m/s

Ignoring the resistance in this case and using a = g = 9.8 m/s²

We have to find the maximum height the ball reaches above where it leaves your hand. Let the maximum height is h. Using third equation of motion as :

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