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Blizzard [7]
3 years ago
13

5. _______ with the largest atoms and the smallest number of valence electrons and _______ with the smallest atoms and the great

est number of valence electrons are the most reactive.
Chemistry
2 answers:
kogti [31]3 years ago
7 0

We have to fill the gap

The correct answer is: Metals with the largest atoms and the smallest number of valence electrons and non-metals with the smallest atoms and the greatest number of valence electrons are the most reactive.

Reactivity of any species depends on ease of release or gain of electron. The species which can release electron easily from valence shell, the species is more reactive whereas the species which can accept electron to its valence shell easily is also more reactive.


Olegator [25]3 years ago
6 0

Explanation:

Metals are the substances that contain less number of valence electrons. Whereas as non-metals are the substances that contain more number of valence electrons.

Also, when we move down a group then there occurs increase in size of atoms due to addition of electrons.

So, outer shell of atoms move away from the nucleus. Hence, force of attraction between nucleus and valence electrons of metals decreases. So, metals are able to lose an electron easily with increase in size.

On the other hand, non-metals find it difficult to attract an electron when increase in size of atom occurs.

Thus, we can conclude that metals with the largest atoms and the smallest number of valence electrons and non-metals with the smallest atoms and the greatest number of valence electrons are the most reactive.

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Answer:

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Explanation:

8 0
2 years ago
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7. (04wP2-5)Elements with atomic number 21 to 30 are d-block elements.
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Answer :

  • (a) zn

Explanation:

  • (b) a ligand is an ion or molecule that binds to the central metal atom to form a cordinate complex.
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3 0
3 years ago
Does the size of an object<br> affect its rate of fall?
Vitek1552 [10]

Answer:

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3 0
2 years ago
Match the symbol for each element with the name of the element. 1. hydrogen K 2. helium Mg 3. sodium He 4. magnesium H 5. potass
insens350 [35]

Answer:

1. hydrogen - H

2. helium - He

3. sodium - Na

4. magnesium - Mg

5. potassium - K

Explanation:

Hydrogen is the element of group 1 and first period. The atomic number of hydrogen is 1 and the symbol of the element is H.

The electronic configuration of the element hydrogen is:-

1s^1

Helium is the element of group 18 and first period. The atomic number of helium is 2 and the symbol of the element is He.

The electronic configuration of the element helium is:-

1s^2

Sodium is the element of group 1 and third period. The atomic number of sodium is 11 and the symbol of the element is Na.

The electronic configuration of the element sodium is:-

1s^22s^22p^63s^1

Magnesium is the element of group 2 and third period. The atomic number of magnesium is 12 and the symbol of the element is Mg.

The electronic configuration of the element magnesium is:-

1s^22s^22p^63s^2

Potassium is the element of group 1 and forth period. The atomic number of potassium is 19 and the symbol of the element is K.

The electronic configuration of the element potassium is:-

1s^22s^22p^63s^23p^64s^1

5 0
3 years ago
The density of ethanol is 0.789 g/cm^3 at 20 degrees C. What volume of ethanol has a mass of 15.5 grams?
lys-0071 [83]
<span>density = mass / volume
   
given the quotient , we have density and mass, volume can be easily calculated as:
   
volume = mass / p =15.5 g / 0.789 g/cm^3
   
=~ 20 cm^3 (dimension ally constant)</span>
6 0
3 years ago
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