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
agasfer [191]
3 years ago
7

15. transition metals has ____ valence electrons

Chemistry
1 answer:
Gemiola [76]3 years ago
8 0

2 valence electrons

Explanation:

Most transition metals have 2 valence electrons. Valence electrons are the sum total of all the electrons in the highest energy level (principal quantum number n). Most transition metals have an electron configuration that is ns2(n−1)d , so those ns2 electrons are the valence electrons.

You might be interested in
Which is chemical property of vinegar
kobusy [5.1K]
Acidic? Vinegar is also known as ethanoic acid, being a carboxylic acid. It has a low pH value compared to alkaline substances (:
7 0
3 years ago
A body that weighs 6 Newton on the earth will weighs – on the moon in newton<br>​
Sergeeva-Olga [200]
An object on the moon is 1/6 of the weight of an object on Earth

To find the answer to your question, divide the number of N on Earth by 6, 6N / 6 = 1N

Hope this helps!
6 0
3 years ago
You are so excited-your first summer job! You are a hot-tub maintenance assistant. You travel to homes, making sure the pH of th
AfilCa [17]

Answer: well i guess we can say that  is a scale used to specify the acidity or basicity of an aqueous solution and it is important to keep ph of hot tub water between 7 and 7.6 because if it is not balanced the water  can negatively affect your tub.

Explanation:

pH is an extremely important chemical level to maintain in your spa's water chemistry. A high pH or a low pH will spell trouble for you and your spa. On the pH scale, a reading of 7.4-7.6 indicates perfectly balanced pH. Any number lower than 7.4 means that your water is now considered “acidic”.

6 0
3 years ago
Read 2 more answers
The elements cu, o, la, y, ba, tl, and bi are all found in high-temperature ceramic superconductors. write the expected electron
timama [110]
Part 1)
Cu- <span>[Ar] 3d¹⁰4s¹     </span><span>atomic number: 29
</span>
<span>O-  [He] 2s2 2p<span>4     atomic number:8

</span></span>La- <span>[Xe] 5d¹ 6s²      </span><span>atomic number:57

Y-   </span><span>[Kr] 4d¹5s²      </span><span>atomic number:39
 
Ba- </span><span>[Xe] 6s²      </span><span>atomic number:56

Tl-  </span><span>[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹   </span><span>atomic number:81

Bi- </span> <span>[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³ </span>atomic number:83

Part 2)
You are able to this by consulting the periodic table and following this steps:
-Find your atom's atomic number;
<span>-Determine the charge of the atom (these were all uncharged)
</span><span>-Memorize the order of orbitals (s, d, p, d.. and how many electrons they can fit)
</span>-<span>Fill in the orbitals according to the number of electrons in the atom
- </span><span>for long electron configurations, abbreviate with the noble gases</span>




4 0
3 years ago
How a scientist might use a graph of the
elena-s [515]
Agora hemorrhage resqoio
8 0
3 years ago
Other questions:
  • How to predict boiling points?
    15·2 answers
  • The molecular structure of water contains two atoms of hydrogen and one atom of oxygen . When water reaches its boiling point an
    8·1 answer
  • N writing a chemical equation that produces hydrogen gas, the correct representation of hydrogen gas is
    14·1 answer
  • What mass of silver chloride can be produced from 1.82 l of a 0.176 m solution of silver nitrate?
    14·1 answer
  • Which parts of atoms can interact (react) to form chemical bonds?
    7·1 answer
  • Where is an earthquake most likely to occur?
    9·2 answers
  • What is the molality of a solution that contains 1.34 moles of NaCl in 2.47 kg of solvent
    5·1 answer
  • Can someone figure this out for me thank you
    5·1 answer
  • If a 520 mg sample of technetium-99 is used for diagnostic procedure, how much of Tc-99 remains after 30.0h? Half life of Tc-99
    15·1 answer
  • Please Help Me Answer Numbers 7, 9, 10, and 11!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!