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Naya [18.7K]
3 years ago
8

1.On the periodic table, what is a period? What characteristic is shared

Chemistry
1 answer:
Masteriza [31]3 years ago
6 0

Answer:

In our modern periodic table, the horizontal rows are known as periods , and the elements belonging to same period have same numbers of shells .

for example :

lithium, beryllium , boron , carbon , nitrogen , oxygen, fluorine and neon are in same period and have total 2 shells .

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3 years ago
TIME REMAINING 52:03 Considering the activity series given below for metals and nonmetals, which reaction will occur?
Luden [163]

Answer:

2NaBr + I2 Right arrow. 2NaI + Br2

2AgNO3 + Ni Right arrow. Ni(NO3)2 + 2Ag

Explanation:

The activity or electrochemical series is an arrangement of elements according to their order

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If we look at the reactions, one thing that we must note is that the reactions that can occur are those in which an element that is higher in the series displaces another element that is lower in the series.

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3 years ago
What is the lowest atom on the periodic table
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How many atoms are in 2.5 moles of beryllium atoms?
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As we know that there are avogadro no. of atoms in 9 g of beryllium.
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