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
tensa zangetsu [6.8K]
3 years ago
13

Select the number of valence electrons for fluorine.

Chemistry
2 answers:
Arte-miy333 [17]3 years ago
6 0
Seven valence electrons is your answer
solniwko [45]3 years ago
6 0

Answer : The number of valence electrons in fluorine are, seven.

Explanation :

As we know that the fluorine is a non-metal element that belongs to the group 17 and period 2. The symbol of fluorine element is, (F) and the atomic number of fluorine is, 9.

The electronic configuration of fluorine is, 1s^22s^22p^5

Electronic configuration : It is defined as the distribution of electrons of an atom in an atomic orbitals.

From the electronic configuration, we conclude that the number of valence electrons present in fluorine is, seven (7).

Hence, the number of valence electrons in fluorine are, seven.

You might be interested in
When changing lanes, you should:
Greeley [361]
The correct answer is A. Adjust your speed to match traffic in the new lane

they want me to use 20 characters haha ignore this down here  
5 0
3 years ago
HELP PLEASE WILL GIVE  BRAINLIEST , the dark portion of the soil created by the decay of organic matters? is called?
NemiM [27]

Answer is: humus.

Humus is the dark organic matter that forms in soil when dead plant and animal matter decays.

Microorganisms decompose the soil organic matter into inorganic minerals that the roots can absorb.

Humus can hold a lot of moisture (approximately 80–90% of its weight) and its dark color helps to warm cold soils.

7 0
3 years ago
Read 2 more answers
Prove the following:V=U + AT<br>​
pychu [463]

We know that,

acceleration (a) = final velocity(V)-initial velocity(U)/ Time taken(T)

6 0
2 years ago
What is the concentration of H+ in 0.0025 M HClO4? What is the pH of the solution? What is the OH− concentration in the solution
alexandr402 [8]

Answer:

A. The concentration of H+ is 0.0025 M

B. The pH is 2.6

C. The concentration of OH- is 3.98x10^-12 M

Explanation:

We'll begin by writing the balanced

dissociation equation of HClO4. This is illustrated below:

HClO4 —> H+ + ClO4-

A. Determination of the concentration of H+ in 0.0025 M HClO4. This is illustrated below:

From the balanced equation above,

1 mole of HClO4 produced 1 mole of H+.

Therefore, 0.0025 M of HClO4 will also produce 0.0025 M of H+.

The concentration of H+ is 0.0025 M

B. Determination of the pH.

The pH of the solution can be obtained as follow:

The concentration of H+, [H+]

= 0.0025 M

pH =?

pH = - log [H+]

pH = - log 0.0025

pH = 2.6

C. Determination of the concentration of OH-

To obtain the concentration of OH-, we must first calculate the pOH of the solution. This is illustrated below:

pH + pOH = 14

pH = 2.6

pOH =?

pH + pOH = 14

2.6 + pOH = 14

Collect like terms

pOH = 14 - 2.6

pOH = 11.4

Now, we can calculate the concentration of the OH- as follow:

pOH = - Log [OH-]

pOH = 11.4

11.4 = - Log [OH-]

- 11.4 = log [OH-]

[OH-] = anti log (- 11.4)

[OH-] = 3.98x10^-12 M

8 0
3 years ago
The solid form of a substance is usually more dense than its liquid and gaseous forms. Similarly the liquid form is usually more
bonufazy [111]
A is the answer.

Ice is solid, however, water is liquid. Yet ice still floats which is less dense than water.

Hope this helps!
4 0
3 years ago
Other questions:
  • 25. Why does increasing concentration usually increase reaction rate?
    8·1 answer
  • In the science lab, Sika combines two substances and determines that a chemical change has taken place. What
    14·1 answer
  • What are the factors that affect the rate of dissolution
    11·1 answer
  • Stars form inside giant clouds of gas and dust. What are these giant clouds of gas and dust called?
    13·2 answers
  • A compound has an empirical formula of CHBr2. If it’s molar mass is 345.6 grams, what is it’s molecular formula
    13·1 answer
  • Any help is valued, thanks in advance, Electronegativity and bonds
    11·1 answer
  • Which gas sample contains the most molecules ?
    9·1 answer
  • A peak elutes from an HPLC column 17.7 cm in length in 11.1 min. What would be the width at half‑height of the peak (in seconds)
    14·1 answer
  • Explanation I need to show work pls help me
    14·1 answer
  • Which condition will decrease the rate of reaction between excess magnesium and hydrochloric acid?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!