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
lions [1.4K]
1 year ago
12

What is the ATOMIC NUMBER for an element with 5 protons, 6 neutrons and 2 electrons?

Chemistry
1 answer:
Ronch [10]1 year ago
8 0

The element's Atomic number , which has 5 protons, 6 neutrons, and 2 electrons (the atomic number is the number of protons) =  5

<h3>What in an atomic number?</h3>

the number assigned to a chemical element according to its atomic number in the periodic system, which places the elements in ascending order of the number of protons in their nuclei. As a result, the atomic number is also the number of protons, which in a neutral atom is always equal to the amount of electrons.

<h3>Briefing:</h3>

Protons and neutrons are added to determine an element's mass number. The only number that may change while maintaining the identity of an element is the number of neutrons for that element (because the atomic number is the number of protons).

Mass number = protons + neutrons

<h3>According to the given data;</h3>

Given:

5 protons,

6 neutrons

2 electrons

Atomic number = ?

We know that the Mass number = protons + neutrons:

Mass number = protons + neutrons

Mass number = 5 + 6:

Mass number = 11

The element's Atomic number , which has 5 protons, 6 neutrons, and 2 electrons (the atomic number is the number of protons) =  5.

To know more about Atomic number  visit:

brainly.com/question/16858932

#SPJ10

You might be interested in
Cu has an anomalous electron configuration. write the observed electron configuration of cu.
xenn [34]
1s2 2s2 2p6 3s2 3p6 3d10 4s1
5 0
3 years ago
Read 2 more answers
A 1300 mL sample of gas with a molar mass of 71.0 g/mol at STP has what density?
Blizzard [7]

Answer:

0.055g/mL

Explanation:

Data obtained from the question include:

Molar Mass of the gass sample = 71g/mol

Volume of the gas sample = 1300 mL

Density =?

The density of a substance is simply mass per unit volume. It is represented mathematically as:

Density = Mass /volume.

With the above equation, we can easily obtain the density of sample of gas as illustrated below:

Density = 71g / 1300 mL

Density = 0.055g/mL

Therefore, the density of the gas sample is 0.055g/mL

6 0
3 years ago
8. Sulfur has a first ionization energy of 1000 kJ/mol. Photons of what frequency are required to ionize one mole of Sulfur?​
Lynna [10]

Answer:

the frequency of photons v = 1.509\times10^{39}Hz

Explanation:

Given:  first ionization energy of 1000 kJ/mol.

No. of moles of sulfur = 1 mole

\Delta E_1 = 1000KJ/mol

We know that plank's constant

h = 6.626\times10^{-34} Js

Let the frequency of photons be ν

Also we know that ΔE = hν

this implies ν = ΔE/h

= \frac{10^6J}{6.626\times10^{-34} Js}

v = 1.509\times10^{39}Hz

Hence, the frequency of photons v = 1.509\times10^{39}Hz

6 0
3 years ago
2 KCIO3 - 2 KCl + 302;<br>Type of Reaction?<br><br>​
Ierofanga [76]

Answer:decomposition reaction

Explanation:it is a decomposition reaction

6 0
3 years ago
After the solution reaches equilibrium, what concentration of zn2 (aq remains?
Fantom [35]
According to sources, the most probable answer to this query is that when solutions reaches equilibrium, the amount of concentration of two or more matter combined in this solution becomes equal. 

Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
8 0
3 years ago
Other questions:
  • Which layer of the atmosphere is between the stratosphere and the thermosphere
    12·1 answer
  • If 3.11 mol of an ideal gas has a pressure of 2.91 atm and a volume of 78.13 L, what is the temperature of the sample in degrees
    10·1 answer
  • How is the kinetic energy of the constituent particles of any matter affected by a change in temperature?
    15·1 answer
  • What is the mass of HCl that would be required to completely react with 5.2 grams of Mg
    13·2 answers
  • Which of the following compounds would be named with a name that ends in -ene?
    5·1 answer
  • What additive are in a lavender tube for phlebotomists
    9·1 answer
  • An aqueous solution of ________ will produce a neutral solution. An aqueous solution of ________ will produce a neutral solution
    15·1 answer
  • How many atoms are in 3N4010 ​
    7·1 answer
  • Difference between saturated unsaturted and supersaturatted
    7·1 answer
  • Based on the parameters set forth in your lab procedure, what is the ph you should observe when you added the hcl to water?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!