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
statuscvo [17]
3 years ago
5

Give the ion symbol for the the ion that has 15 protons and 18 electrons

Chemistry
2 answers:
Montano1993 [528]3 years ago
7 0
By referring to a periodic table or table of elements, we see that phosphorus (symbol P) has an atomic number of 15. Thus, each atom has 15 protons. The mass number of the ion is 15 + 16 = 31. Because the ion has 15 protons and 18 electrons (three more electrons than protons), its net charge is 3-.
lana66690 [7]3 years ago
7 0

<u>Answer:</u> The symbol of the ion is P^{3-}

<u>Explanation:</u>

An ion is formed when a neutral atom looses or gains electrons.

  • When an atom looses electrons, it results in the formation of positive ion known as cation.
  • When an atom gains electrons, it results in the formation of negative ion known as anion.

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

We are given:

Number of protons = 15

Number of electrons = 18

Charge = Number of protons - Number of electrons = 15 - 18 = -3

The element having 15 protons is phosphorus. So, the symbol of the ion is P^{3-} ion

Hence, the symbol of the ion is P^{3-}

You might be interested in
A patient taking _______ would have a history of mental depression.
ohaa [14]
The answer is Prozac
4 0
3 years ago
What is the value of delta Hrxn for this equation:
Ratling [72]

Answer:

The ΔHrxn for the above equation = 179 kJ/mol

Explanation:

The reaction bond enthalpies are for the reactant;

3 × N-H = 3 × 390 = 1,170 kJ/mol

2 × O=O = 2 × 502 = 1004 kJ/mol

The reaction bond enthalpies are for the product;

3 × N-O = 3 × 201 = 603 kJ/mol

3 × O-H = 3 × 464 = 1,392 kJ/mol

The ΔHrxn for the above equation is therefore;

ΔHrxn = 1,170 + 1,004 - (603 + 1,392) = 179 kJ/mol

6 0
3 years ago
the volume of gas in a container was originally 3.24L, while at standard pressure 1.00 atm. what will the volume be if the press
Simora [160]
Hello!

To solve this problem, we will use the Boyle's Law, which describes how pressure changes when volume changes and vice-versa. The equation for this law is the following one, and we'll clear for V2:

P1*V1=P2*V2 \\ \\ V2= \frac{P1*V1}{P2}= \frac{3,24 L * 1 atm}{1,20 atm}= 2,7 L

So, the final volume after increasing the pressure would be 2,7 L. That means that volume decreases when the pressure increases

Have a nice day!
8 0
3 years ago
from the following chemical reaction , calculate the moles of mg if 3.5 mol of hcl in reactant mg + 2hcl --&gt; mgcl2 + h2
sveticcg [70]
1.75 moles or 1.8 moles if you’re rounding in terms of sig figs
6 0
2 years ago
How many grams of lead(II) iodide are produced from 6.000 moles of NaI according to the balanced equation: Pb(NO3)2 + 2 NaI à 2
marta [7]

Answer:

mass PbI₂ formed = 1383 grams

Explanation:

Pb(NO₃)₂ + 2NaI => 2NaNO₃ + PbI₂(s)

6 mol NaI =>  1/2(6 mol) PbI₂ = 3 mol PbI₂ x 461.01 g/mol = 1383.03 grams ≅ 1383 grams (4 sig. figs.)

7 0
3 years ago
Other questions:
  • Calculate the volume of dry co2 produced at body temperature (37 ∘c) and 0.960 atm when 24.0 g of glucose is consumed in this re
    7·1 answer
  • What dose lava mean in spanish
    6·2 answers
  • Which statement is true according to the kinetic theory?
    6·2 answers
  • Determine whether the statement is true or false, and why? “Climate change could cause many habitats to be destroyed, leading to
    7·1 answer
  • Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies.
    9·1 answer
  • What can form as a result of a chemical reaction?
    9·2 answers
  • When weak acids react with strong bases, the H+ from the weak acid is transferred to the:
    14·2 answers
  • A piece of rock has a mass of 2.00g. It contains calcium carbonate, but no other
    8·1 answer
  • Please help, chemistry is kicking me!
    14·1 answer
  • [H3O+] = 2.9 x 10-10 M<br> ph level
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!