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
Veseljchak [2.6K]
3 years ago
10

Which of the following elements is a metalloid​

Chemistry
1 answer:
vladimir1956 [14]3 years ago
4 0

Traditionally they include boron from group 3A, silicon and germanium in group 4A, aresnic and antimony in group 5A and tellurium from group 6A, although sometimes selenium, astatine, polonium and even bismuth have also been considered as metalloids. Typically metalloids are brittle and show a semi-metallic luster.

The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. Five elements are less frequently so classified: carbon, aluminium, selenium, polonium, and astatine.

You might be interested in
Plants are living organisms that respond to stimuli, use resources for energy, grow and develop, are organized by cells, and rep
Andreas93 [3]

Answer:

true

Explanation:

5 0
2 years ago
Read 2 more answers
Explain how low atomspheric oxygen levels affected alligators growth in terms of celluar respiration
Paraphin [41]

Answer:

Answer: Hyperoxic alligators show significantly lower breathing rates than their siblings in normoxic and hypoxic groups. Conversely, each breath supports greater oxygen consumption in hyperoxic animals than in other groups. Statistical significance between groups was calculated by ANOVA with post hoc Tukey-Kramer

3 0
3 years ago
Analyze: What pattern do you see? Make a rule: Based on your data, how are elements arranged into chemical families?
julia-pushkina [17]

Answer: in order of increasing atomic number.

Explanation: Elements in the same group have similar chemical properties. This is because they have the same number of outer electrons and the same valency.

7 0
2 years ago
Read 2 more answers
29. Ammonia is formed with one nitrogen and three hydrogen atoms. What is the electron configuration of nitrogen? How
masya89 [10]

Answer:

<u>One lone-Pair is present in Ammonia</u>

<u></u>

Explanation:

The number of valence electron in N = 5

The number of Valence electron in H = 1

The formula of ammonia = NH3

Total valence electron in ammonia molecule = 5 +3(1) = 5+3 = 8

The lewis structure suggest that :

Nitrogen completes its octet by sharing the electron pair with 3 hydrogen atoms.

3 electron of Nitrogen are involved in sharing with Hydrogen

So,<u><em> remaining two electron are left non-bonded</em></u> . Hence they exist as lone- pair

So, there is only 1 lone pair in the ammonia molecule .

The shape of NH3 is bent according to VSEPR theory . This is so because the presence of 1 lone pair causes more repulsion and occupy more space.

Thus the lone pair is changing the shape of the ammonia molecule . It also increase the dipole moment of the molecule , which gives polarity to it.

5 0
4 years ago
Diamond cannot conduct electricity but graphite can,why​
zavuch27 [327]

Diamond does not conduct electricity because it has no delocalized electron to conduct electricity.

8 0
3 years ago
Other questions:
  • A local farmer uses chemical fertilizers in his farm. The runoff from the farm pollutes a river which supplies drinking water in
    6·2 answers
  • What energy conversion occurs when a solar panel uses light to provide power to a house?
    13·1 answer
  • How does atomic mass differ from atomic number
    13·2 answers
  • A chemical reaction in which one element replaces another element in a compound can be categorized as?
    9·1 answer
  • What happens to the temperature of water when the average kinetic energy of its particles decreases
    9·1 answer
  • Why can scientist assume elastic collisions as long as the temperature remains constant?
    13·1 answer
  • Can I have help with this. I'm really stuck.<br> thanks. the question is above.​
    9·1 answer
  • As electrons gain more energy they can move ____ away from the nucleus
    15·1 answer
  • ___ is when water changes from gas directly to a solid
    10·2 answers
  • Which of the following elements has the largest electronegativity?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!