1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Jlenok [28]
3 years ago
10

Why is boron and beryllium an exception to the octet rule

Chemistry
1 answer:
aliya0001 [1]3 years ago
4 0

Answer:

Explanation:

Beryllium especially, but Boron as well both exhibit metallic characteristics.

The outside ring of Beryllium contains 2 electrons. It would have to take on 6 electrons to have a ring of 8. The same statement can be made about Boron (except that it would need 5 electrons to make 8). It is easier for the atom to give up 2 or 3 than than to take on 5 or 6. It would not be easy to have a 5 or 6 minus charge on it.

You might be interested in
A compound 21.20% nitrogen 6.06% hydrogen 24.30% sulfur and 48.45% oxygen. Write the empirical formula and name the compound?
egoroff_w [7]

Greetings!

<h3>To find the empirical formula you need the relative atomic mass of each element!</h3>

N = 14

H = 1

S = 32.1

<h3>You can simply change the percentages into full grams</h3>

N = 12.20

H = 6.06

S = 48.45

<h3>Then you use this to find the Number of moles = amount in grams / atomic mass</h3>

N = 12.20 ÷ 14 = 0.8714

H = 6.06 ÷ 1 = 6.06

S = 48.45 ÷ 32.1 = 1.541

<h3>Then divide each number of moles by the smallest value:</h3>

N = 0.8714 ÷ 0.8714 = 1

H = 6.06 ÷ 0.8714 = 6.9 ≈ 7

S = 1.541 ÷ 0.8714 = 1.76 ≈ 2


So that means that there are 1 Nitrogen, 7 hydrogen, and 2 sulfur. This means the empirical formula would be:

NH₇S₂


Hope this helps!

8 0
3 years ago
Cryosurgery uses ________ to remove skin lesions. cold heat chemicals all of these
True [87]
Extreme cold which is usually produced by liquid nitrogen. Hope that helps!
5 0
4 years ago
#5.) Explain why the rock cycle is referred to as a "cycle".
Natalka [10]
The rock cycle is referred to as cycle because it repeats over and over again. The definition of cycle is a series of events that are regularly related in the same order. So with the rock cycle they stay in the same order and repeat.
Hope this helps :)
5 0
4 years ago
Read 2 more answers
Question 4 (2 points)
worty [1.4K]

Answer:

B. He should heat the water to a higher temperature.

Explanation:

Tiny particles that make up water and salt vibrate at higher speeds in hotter temperatures, which mixes the salt and water faster. This causes salt to dissolve much faster.

8 0
3 years ago
Write the balanced molecular chemical equation for the reaction in aqueous solution for ammonium sulfate and iron(II) chloride.
dusya [7]

The balanced molecular chemical equation for the reaction is (NH4)2SO4(aq) + FeCl2(aq) -------> FeSO4(aq) + 2NH4Cl(aq).

The rule for writing a balanced chemical reaction equation is that the number of atom of each element on the right hand side must be the same as the number of atoms of the same element on the left hand side of the reaction equation. This is achieved by performing an atom count.

The balanced molecular chemical equation for the reaction in aqueous solution for ammonium sulfate and iron(II) chloride is;

(NH4)2SO4(aq) + FeCl2(aq) -------> FeSO4(aq) + 2NH4Cl(aq)

Learn more: brainly.com/question/6505878

7 0
3 years ago
Other questions:
  • Which statement is not true about oxygen-17 and oxygen-18 (A) they have the same number of protons. (B) their atoms have an iden
    13·2 answers
  • What are 1,2 and 3 examples of the same periodic table​
    9·1 answer
  • A chemist measures the amount of iodine solid produced during an experiment. she finds that 1.6 g of iodine solid is produced. c
    9·1 answer
  • A student mixes a 10.0 mL sample of 1.0 M NaOH with a 10.0 mL sample of 1.0 M HCl in a polystyrene container. The temperature of
    6·1 answer
  • If the pressure of a gas sample is quadrupled and the absolute temperature is doubled, by what factor does the volume of the sam
    5·1 answer
  • Which of the following is equal to 2.3 cm3?
    9·1 answer
  • What is the role of gravity in the solar system functions. Why don’t the planets fly off into space? Why don't the planets ram i
    6·2 answers
  • Atomic mass of nitrogen
    10·1 answer
  • What does a velocity measurement include that a speed measurement does not?
    14·1 answer
  • The web's ______ advantage allows for data and resource sharing that enables communication with a website.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!