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3 years ago

Consider these atoms. which atom (ba or i) would accept electrons from the other atom to satisfy the octet rule?

Chemistry

2 answers:

Vinil7 [7]3 years ago

4 0

I is the answer. it follows the octet rule

Artist 52 [7]3 years ago

3 0

The correct answer is ( I )

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The number above the elements symbol is the elements atomic number. Match each element with the number of valence electrons it h

Natali5045456 [20]

Answer: Aluminium has 3, Sulfur has 6, Sodium has 1, Silicon has 4, Magnesium has 2 and Phosphorous has 5 valence electrons.

Explanation:

Valence electrons are defined as the electrons which are present in the outermost shell of an element. This can be determined very well from the electronic configurations of the elements.

The given elements are the elements which belong to the same period which is Period 3.

Electronic configuration of the given elements:

$Al(Z=13)=1s^22s^22p^63s^23p^1$

$S(Z=16)=1s^22s^22p^63s^23p^4$

$Na(Z=11)=1s^22s^22p^63s^1$

$Si(Z=14)=1s^22s^22p^63s^23p^2$

$Mg(Z=12)=1s^22s^22p^63s^2$

$P(Z=15)=1s^22s^22p^63s^23p^3$

Hence, from the electronic configurations, Aluminium has 3, Sulfur has 6, Sodium has 1, Silicon has 4, Magnesium has 2 and Phosphorous has 5 valence electrons.

4 0

3 years ago

Read 2 more answers

Which statement describes the reason for removing the insulation from the

Marysya12 [62]

Answer:

Explanation:

6 0

3 years ago

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What is the molar mass of Fe(OH)3

aleksley [76]

The answer is 88.86 g/mol

5 0

3 years ago

Hydrazine, N2H4, is a colorless, oily liquid that fumes in air and has an odor much like that of ammonia. It is used as a rocket

Cloud [144]

Answer:

1 unshared pair of electrons

Explanation:

In order to draw the Lewis structure, we need to consider the octet rule: atoms tend to share electrons to complete their valence shell with 8 electrons. In the case of H, it has to complete a duet (2 valence electrons).

N has 5 valence electrons, so it has to share 3 pairs of electrons to reach the octet.

H has 1 valence electron, so it has to share 1 pair of electrons to reach the duet.

In the picture, we can see the resulting Lewis structure. There is 1 unshared pair of electrons on each nitrogen.

6 0

3 years ago

What mass in grams of a molecular substance (molar mass = 50.0 g/mol) must be added to 500 g of water to produce a solution that

Lera25 [3.4K]

Answer: The mass of the substance that must be added is 75.2 grams.

Explanation:

Elevation in boiling point is defined as the difference in the boiling point of solution and freezing point of pure solution.

The equation used to calculate elevation in boiling point follows:

$\Delta T_b=\text{boiling point of solution}-\text{boiling point of pure solution}$

$\Delta T_b$ = ? °C

Boiling point of pure water = 100°C

Boiling point of solution = 101.54°C

Putting values in above equation, we get:

$\Delta T_b=(101.54-100)^oC=1.54^oC$

To calculate the elevation in boiling point, we use the equation:

$\Delta T_b=iK_bm$

Or,

$\Delta T_b=i\times K_b\times \frac{m_{solute}\times 1000}{M_{solute}\times W_{solvent}\text{ in grams}}$

where,

$\Delta T_b$ = 1.54°C

i = Vant hoff factor = 1 (For non-electrolytes)

$K_b$ = molal boiling point elevation constant = 0.512°C/m.g

$m_{solute}$ = Given mass of solute = ? g

$M_{solute}$ = Molar mass of solute = 50.0 g/mol

$W_{solvent}$ = Mass of solvent (water) = 500 g

Putting values in above equation, we get:

$1.54^oC=1\times 0.512^oC/m\times \frac{m_{solute}\times 1000}{50.0g/mol\times 500}\\\\m_{solute}=\frac{1.54\times 50.0\times 500}{1\times 0.512\times 1000}=75.2g$

Hence, the mass of substance that must be added is 75.2 grams.

3 0

3 years ago