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Alecsey [184]
3 years ago
13

A chemist wants to use an element with a large electronegativity for an experiment. Based on trends in the periodic table, which

of the following groups has the largest electronegativity. Alkali Metals Halogens Noble Gases Alkaline Earth Metals

Chemistry
1 answer:
Sidana [21]3 years ago
6 0

Answer:

Halogens

Explanation:

Electronegativity increases from <em>left to right</em> in the Periodic Table (see image).

We ignore the elements of Group 18 (the noble gases) because they are quite unreactive.

So, the most electronegative elements are those in Group 17 (the <em>halogens</em>).

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Please help me with chemistry
vodka [1.7K]

Table Giving Answer

Element Atomic mass % Amount

Mg_24     24                79    18.96

Mg_25 25                10    2.5

Mg_26 26                11   2.86

   

Total                     24.32

Discussion

The method of calculation for this table, which was done in Excel (a spread sheet) is shown below. Assume that there is 100 grams of material of "pure" magnesium. What is it's mass?

<em><u>Sample  Calculation</u></em>

The the sample atomic mass = 24

Mass = % * sample atomic mass

Mass = 79% * 24

Mass = (79/100) * 24

Mass = 18.96

<em><u>Note</u></em>

The other two elements are found exactly the same as the sample calculation.

Then all you do is add the 3 masses together.

Answer

The mass of Mg to 1 decimal place is 24.3 <<<< Answer.


7 0
3 years ago
This characteristic of hydrogen and oxygen make the water molecule polar: ______.
Finger [1]

Answer:

thé answer is b ) electronegativity

5 0
3 years ago
¿Cuál de las siguientes configuraciones globales corresponde a un elemento químico que se comporta como metal? 1 punto [He]2s2 2
yuradex [85]

Answer:

[Ne]3s2

Explanation:

ahora tenemos que mirar cada una de las configuraciones electrónicas de cada átomo de cerca antes de tomar una decisión.

considerando la configuración electrónica más externa de cada una de las especies mostradas;

para la primera configuración, ns2 np6 corresponde a un gas noble.

para la segunda configuración ns2 np3 corresponde a un elemento no metálico del grupo 5.

para la tercera configuración, ns2 corresponde a un elemento metálico del grupo 2.

para la cuarta configuración, ns2 np4 corresponde a un elemento no metálico del grupo 6

5 0
3 years ago
Công thức của A có dạng Ca(hco3)x có ptk là 162 tìm x
harina [27]

Answer:

j

Explanation:

nwjwjw

dodkekds

dldldle

5 0
2 years ago
Pleaseeeee hellppppp !!!!
Tomtit [17]

Answer:

  1. both
  2. cation
  3. anion
  4. both
  5. cation
  6. anion
  7. both
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3 0
3 years ago
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