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
dimaraw [331]
3 years ago
10

Number one and atom of element x contains 15 electrons and 16neutrons.

Chemistry
2 answers:
Sladkaya [172]3 years ago
8 0

Answer:

a) 30.97

b) 3s² 3p²

I hope it's helps you

Gnesinka [82]3 years ago
6 0

No of protons=No of electrons=15

Mass no:-No of neutrons+No of protons

\\ \tt\longmapsto 15+16=31

Now

It has atomic no 15 hence its Phosphorus(P)

Electronic configuration:-

\\ \tt\longmapsto 1s^22s^22p^63s^23p^3.

  • Valency=3
<h3>Chloride formula:-</h3>

\\ \tt\longmapsto XCl_3

or.

\\ \tt\longmapsto PCl_3

You might be interested in
Hii pls help me!! <br>even if u know how to do one, it's okk <br>anything helps ​
tensa zangetsu [6.8K]

Explanation:

a) HNO2(aq) = HNO3(aq) + H2O(l) +NO(g)

b) SoCl2 (l) + H2O (l) = So2(g) + 2HCl(aq)

c) CH4 (g) + 2O2(g) = Co2 (g) + 2H2O(g)

d) 3CuO(s) + 2NH3 (g) = 3Cu(s) + 3H2O (l) + N2(g)

3 0
3 years ago
The chief advantage of the metric system over other systems of measurement is that it ____.
OlgaM077 [116]

The chief advantage of the metric system over other systems of measurement is that it B. is in multiples of 10.

This can be seen in the picture below that shows the prefixes of the metric system.


7 0
3 years ago
Read 2 more answers
What is the main benefit of this model?
igor_vitrenko [27]

Answer:

letter D.

Explanation:

it shows a pattern for determining the side of lengths of a triangle yeah the triangle had a model and a length

4 0
2 years ago
What is the empirical formula of propene CH3 CH2 CH2​
kiruha [24]

Answer:

<u>CH</u>

Explanation:

Molecular formula of propene : <u>C₃H₆</u>

Take the HCF of carbon and hydrogen atoms :

  • 3 = 3
  • 6 = 2 x 3

Then, we can write the formula as :

  • 3CH
  • This means there are 3 moles present

Empirical Formula :

  • Molecular Formula / No. of moles
  • C₃H₆ / 3
  • <u>CH</u>

<u></u>

The empirical formula of propene is <u>CH</u>

6 0
1 year ago
What is the largest number of atoms a carbon atom can bond to with all single bonds
ICE Princess25 [194]
4 total bonds if u have double,or triple then subtract from 4
3 0
3 years ago
Other questions:
  • For the following aqueous reaction, complete and balance the molecular equation and write a net ionic equation, making sure to i
    12·1 answer
  • Describe an object that is transparent. What quality makes it transparent?
    11·1 answer
  • Which Example is a way that intercellular communication occurs
    5·1 answer
  • Write a balanced equation and indicate the reaction type (single or double replacement, decomposition, or composition/synthesis)
    12·1 answer
  • Question 7
    13·2 answers
  • In roses, the color red is dominant (R), and the color white is recessive (r). Based on the Punnett Square, what is the probabil
    14·1 answer
  • A solid is composed entirely of xenon atoms. What type of solid is it?
    10·1 answer
  • The blue colour of the sky results from the scattering of sunlight by air molecules. Blue light has a frequency if about 7.5*10^
    8·1 answer
  • Which of the following is soluble in water? <br>1-glycerin <br>2-sand<br>3-iron filing<br>4-oil​
    12·2 answers
  • Calculate mole fraction of benzene (70 g) having 30 gram of mass of carbon tetrahedral​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!