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Oksana_A [137]
3 years ago
15

Why is it called the periodic table of elements (why is the word periodic in it)

Chemistry
1 answer:
olchik [2.2K]3 years ago
8 0

Answer:

It is called "periodic" because elements are lined up in cycles or periods. From left to right elements are lined up in rows based on their atomic number (the number of protons in their nucleus). ... Each horizontal row in the table is a period. There are seven (or eight) total periods.

Explanation:

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A beaker is filled to the 500 mL mark with alcohol. What increase in volume (in mL) does the beaker contain when the temperature
Aliun [14]

Answer:

"1.4 mL" is the appropriate solution.

Explanation:

According to the question,

  • v_0=500
  • \alpha =1.12\times 10^{-4}
  • \Delta \epsilon = 25

Now,

Increase in volume will be:

⇒ \Delta V = \alpha\times v_0\times \Delta \epsilon

By putting the given values, we get

           =1.12\times 10^{-4}\times 500\times 25

           =1.12\times 10^{-4}\times 12500

           =1.4  \ mL

8 0
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kozerog [31]

Answer:

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7 0
3 years ago
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Oksana_A [137]

Answer: The methodology is the science that addresses these issues.

Explanation:

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7 0
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if a girl holds a ball at waist level and then lifts the ball above her head and holds it there which of the following is she do
Zigmanuir [339]

Answer:

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4 0
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Hunter-Best [27]

Answer:

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Explanation:

7 0
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