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
aksik [14]
3 years ago
8

Enter the appropriate symbol for an isotope of calcium-42 corresponding to the isotope notation AZX.

Chemistry
2 answers:
Ganezh [65]3 years ago
8 0
The proton number number of the element stays constant in its isotopes while the mass number changes. So, for this isotope of Calcium:
42Ca20
Vikki [24]3 years ago
5 0
Answer is ₂₀⁴²Ca.<span>

In AZX notation
   A<span> - Represents the </span>mass number of atom.
         Mass number = number of protons + number of neutrons.
<span>         It is shown at the </span>above of the left side<span> of the atom.</span>
<span>         Here it is </span>42. 

<span>  </span>Z - Represents the atomic number.<span>
       Atomic number = number of protons.
       </span><span>It is shown at the</span> bottom line of the left side of the atom.<span>
       </span>Here it is 20.<span>
 
  X - </span>Represents the symbol of the atom.<span>
     <span>   </span></span>Here</span> X is Ca.<span>

</span>
You might be interested in
An atom gets over all positive charge by ____ _______
Rasek [7]
<h2>Answer:</h2>

Nucleus.

<h2>Explanation:</h2>
  • In an atom the nucleus has an overall positive charge as it contains the protons.
  • Every atom has no overall charge (neutral). While atoms do contain charged particles, they have the same number of positive protons as negative electrons( for example a sodium atom has 11 electrons which are of negative charge and 11 protons which are of positive charge).
  • These opposite charges cancel each other out making the atom neutral.

Result: Nucleus is the overall positive charge of an atom.

4 0
3 years ago
Solid sodium hydroxide <br> NaOH<br> decomposes into gaseous water and solid sodium oxide .
kari74 [83]
What about it do you want answered
8 0
3 years ago
Chemical reaction precipitate for Ba (NO3)2+K2 CO3?
Alinara [238K]
Yes, because the net ionic is equation will yield BaCO3 as a precipitate because it is insoluble in water
7 0
3 years ago
Read 2 more answers
You are examining the DNA sequences that code for the enzyme phosphofructokinase in skinks and Komodo dragons. You notice that t
jek_recluse [69]

Answer: D. Mutation in coding sequences are more likely to be deleterious to the organism than mutations in noncoding sequences.

Explanation: It was not likely to be that the coding sequences are replicated more often. The only possible explanation is that the mutations in coding is more likely to be deleterious to the organism than mutations because it is in a non coding sequence.

8 0
2 years ago
State property of the liquids that caused them to separate into layers
nydimaria [60]

Explanation:

Decantation is a process for the separation of mixtures of immiscible liquids or of a liquid and a solid mixture such as a suspension.

Source: https://en.m.wikipedia.org/wiki/Decantation

6 0
3 years ago
Other questions:
  • 1.Build or draw the Lewis structure for each of the molecules listed below.
    14·1 answer
  • What are atoms comprised of?
    5·1 answer
  • A given atom has 3 protons, 4 neutrons, and 3 electrons. Describe how you can use those three values to describe the structure,
    11·1 answer
  • Choose the number of significant figures indicated 0.06
    10·1 answer
  • Much like its household namesake, a molecular sieve utilizes differences in what property of substances to separate the componen
    7·1 answer
  • Before the fire, the forest consists of large trees. After the fire, there is only ash. Explain what the law of conservation of
    8·1 answer
  • What evidence of chemical reaction will be observed based on this chemical reaction?
    7·1 answer
  • A houseplant is placed on a window sill that gets direct, bright sunlight
    15·1 answer
  • Our solar system formed from a
    6·1 answer
  • A(1,2),B(1,4),C(6,2),
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!