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ad-work [718]
3 years ago
14

FILL IN THE BLANK an elements __________ is its row in the periodic table

Chemistry
2 answers:
Kipish [7]3 years ago
6 0

elements are classified into rows and columns in the periodic table.

Elements are arranged in the increasing order of the atomic number

elements with same number of valence electrons fall into the same column. these columns are called groups.

elements having the same amount of outermost energy shells fall into the same row. These rows are called periods.

therefore elements where the highest energy electron is in the second energy shell belongs to period 2

and elements with highest energy electron is the third energy shell belongs to period 3 and so on.

Therefore rows represent the periods of elements


answer is an elements period is its row in the periodic table

Sedaia [141]3 years ago
3 0
The question is asking to complete the said statement that is all about the element in the periodic table and base on my research and further investigation, I would say that the answer would be a Period. I hope you are satisfied with my answer and feel free to ask for more 
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Which is not a compound? water silicon dioxide oxygen gas carbon dioxide gas
Illusion [34]
All of these are compounds except oxygen because a compound is two or more different elements bonded together.
4 0
3 years ago
A 4.24 kg marble slab has the volume of 1564 cm3 What is the density in g/cm3
miskamm [114]

Answer:

The answer is

<h2>2.71 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

volume of marble = 1564 cm³

1 kg = 1000 g

4.24 kg = 4240 g

mass = 4240 g

The density is

density =  \frac{4240}{1564}   \\  = 2.710997442...

We have the final answer as

<h3>2.71 g/cm³</h3>

Hope this helps you

7 0
3 years ago
If a liquid has a Ph of 3 what is it​
kvasek [131]
Lower than 7 is acid greater than 7 is a base
6 0
3 years ago
If a block has the mass of 15.00 grams and measurements of 5.00cm by 3.00cm by 2.00cm what is the volume of the block?
Natalija [7]

Answer:

Volume = 30cm³

Explanation:

A block is a geometrical figure and its volume, -look at the figure-, follows the equation:

Volume = Width*Length*Height

As the measurements of the block are 5.00cm, 3.00cm and 2.00cm, the volume is:

Volume = 5.00cm*2.00cm*3.00cm

<h3>Volume = 30cm³</h3>

3 0
3 years ago
If the observed value for a density is 0.80 g/mL and the accepted value is 0.70 g/mL what is the percent error?
kvv77 [185]

Answer:

<h2>The answer is 14.29 %</h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

actual density = 0.70 g/mL

error = 0.8 - 0.7 = 0.1

So we have

P(\%) =  \frac{0.1}{0.7}  \times 100 \\  = 14.285714...

We have the final answer as

<h3>14.29 %</h3>

Hope this helps you

4 0
3 years ago
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