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
Pani-rosa [81]
3 years ago
15

Which element has 12 protons 12 neutrons and 12 electrons

Chemistry
1 answer:
brilliants [131]3 years ago
3 0

Answer:

Magnesium

Explanation:

Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column of the periodic table: all group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure.

You might be interested in
Determine the atomic number, atomic mass and element name of the following:
laiz [17]

Answer:

Carbon-14

Carbon-14: with 6 protons and 8 neutrons, and an atomic mass of 14.

3 0
2 years ago
Which of the following describes the relationship correctly?
galben [10]
A. Air expands, becomes less dense and rises when the temperature is high due to the increased kinetic energy. This causes the air molecules to move around much more so they are further apart.
8 0
3 years ago
Read 2 more answers
A graduated cylinder was filled to 20.3 mL with water. A solid object weighing 73.05 g was immersed in the water, raising the me
victus00 [196]

The density of the solid object will be 2.63 g/mL

<h3>What is density?</h3>

Density of objects = mass/volume.

Recall that an object will always displace its own volume when placed in a liquid.

Volume of the solid object = Cylinder reading after immersing the object in the water - cylinder reading before immersing the object in the water.

             = 48.1 - 20.4

                  = 27.8 mL

Mass of the solid object = 73.05 g

Density of the object = 73.05/27.8

                                         = 2.63 g/mL

More on density can be found here: brainly.com/question/15164682

#SPJ1

3 0
1 year ago
Percent Composition and Determining Empirical And Molecular Formulas
raketka [301]

Answer:

% comp. H = 2.8%, % comp. Cl = 97.2%

Explanation:

HCl mass = mass of H + mass of Cl

HCL mass = 1.00794 + 35.453 = 36.46094

% comp. of H = 1.007694 / 36.46094 x 100 = around 2.8% (2.76376308455)

% comp. of Cl = 35.453 / 36.46094 x 100 = around 97.2% (97.2355622208)

3 0
2 years ago
C6h5-c=o-ch3 + br2/oh
Natali [406]

Explanation:

here's the molecule you were looking for

4 0
3 years ago
Other questions:
  • How many moles of H2O are produced from 12.5 moles of SO2<br><br> 3SO2+O+2H2O———3H2SO4
    9·1 answer
  • When recording measurement data, why is the use of significant figures important?
    8·1 answer
  • What is a cause of human population decrease
    13·2 answers
  • Write a program that allows the user to enter a number of quarters, dimes, and nickels and then outputs the monetary value of th
    13·1 answer
  • According to newtons 3rd law, an action creates​
    11·1 answer
  • What is the hydroxide ion concentration of a solution that has a pH of 8.57?
    8·1 answer
  • The chemical formula for aluminum + oxygen
    7·1 answer
  • Please help me please
    12·1 answer
  • Help pls thnk you!!!!
    15·1 answer
  • Convert 19.2 moles to kL ??
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!