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
Dimas [21]
3 years ago
15

ASAP: in group 13, the only metalloid, boron, is at the very top of the group. Explain why the rest of the group has metallic be

havior but boron does not.
Chemistry
1 answer:
Marrrta [24]3 years ago
3 0

Electronegativity of boron is the highest in the group and it will form covalent bonds in all his combinations.

The rest of the group will form bonds with intermediate nature between covalent and ions bods in their respective compounds, with thallium (Tl) behaving most close to a metal.

Moreover boron have a very high melting points (around 2200 °C) while in the boron cristal the chemical bonds are directed in space, similar with carbon suggesting his nature as a non-metal.

Other elements form the group Al, Ga, In, Tl have lower melting points 660, 30, 157 and 304  °C, respectively. Also in the elemental state, they have metallic characteristics: metalic luster, ductility, high electrical and thermal conductivity.

You might be interested in
Si se tiene 1mol de NO . cuantas moleculas de NO hay
kumpel [21]

if you have 1mol of NO. how many molecules of NO are there

Answer:

6.02 x 10²³ molecules

Explanation:

Given parameters:

Number of moles of NO = 1 mole

Unknown:

Number of molecules in NO;

Solution:

A mole of compound contains the Avogadro's number of particles.

  1 mole of a substance contains 6.02 x 10²³ molecules

So, 1 mole of NO contained 6.02 x 10²³ molecules

3 0
2 years ago
**PLATO QUESTION, PLEASE ANSWER CORRECTLY**
Ivenika [448]
The corect answers will be:
1) A
2) B
3) D

Hope this helped :)
7 0
3 years ago
PLEASEE ANSWER FASST
Dimas [21]

Answer:

2 is the valancy of alkine

7 0
3 years ago
Read 2 more answers
Which model uses nuclear fusion Thomason model or the Bohr model (it’s the second bullet point)
Diano4ka-milaya [45]

Answer:

Aye bro you from discovery too

Explanation:

8 0
3 years ago
Phosgene is formed from carbon monoxide and chlorine. At 611 oC, Kc is approximately 16.5 M-1 or L/mol. Calculate Kp (in atm-1)
defon

Answer:

Kp is 0.228/atm

Explanation:

This is the reaction:

CO + Cl<u>₂</u> → CCl₂O

1 mol of carbon monoxide and 1 mol of chlorine produce 1 mol of phosgene.

Formula for Kp which derivates from Kc is:

Kp = Kc (R.T)ⁿᵇ ⁻ ⁿᵃ

Δп = nb (moles in the products) - nₐ(moles in the reactants)

Δп = 1 - 2 = -1

T is T° in K → T°C + 273 = 611°C +273 = 884K

R → Universal constant gas → 0.082 L.atm/mol.K

We replace the data: Kp = 16.5 L/mol (0.082 . 884K)⁻¹ → 0.228/atm

5 0
3 years ago
Other questions:
  • Consider the reaction co(g)+nh3(g)âhconh2(g), kc=0.900 if a reaction vessel initially contains only co and nh3 at concentrations
    6·2 answers
  • The picture below shows one cell dividing into two cells.
    5·2 answers
  • Many atomic dimensions are expressed in angstroms (A). (1A = 1 x 10-8cm). What is the angstrom equal to in terms of the SI units
    10·1 answer
  • Please help me for question 1 and 2
    12·1 answer
  • The alignment of the Moon and Sun has an affect on Earth's ocean tides. What force
    7·1 answer
  • If 0.590 moles of a gas are found in a 9.25 L container at 1.27 atm, what is the temperature?
    14·1 answer
  • Only animals and not plants can adapt to their environment true or false
    14·1 answer
  • Diffusion is the movement of solutes from an area of
    6·2 answers
  • How do the equations differ for the neutralization reaction between a strong acid/strong base and a weak acid/strong base
    10·1 answer
  • Which one of these molecules can be a reactant in a friedel-crafts reaction? a) aniline b) benzenesulfonic acid c) chloroethene
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!