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
Lady_Fox [76]
3 years ago
12

9. Write a balanced nuclear equation for the following: The isotope Strontium-90 decays by Q-

Chemistry
1 answer:
Sergio039 [100]3 years ago
4 0

Answer: _{38}^{90}\textrm{Sr}\rightarrow _{36}^{86}\textrm{Kr}+_2^4\textrm{He}

Explanation:

Alpha Decay: In this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. The mass number is reduced by 4 units and atomic number is reduced by 2 units.

General representation of an element is given as:   _Z^A\textrm{X}

where,

Z represents Atomic number

A represents Mass number

X represents the symbol of an element

General representation of alpha decay :

_Z^A\textrm{Sr}\rightarrow _{Z-2}^{A-4}Y+_2^4\alpha

The  balanced nuclear equation when the isotope Strontium-90 decays by Q-  decay is :

_{38}^{90}\textrm{Sr}\rightarrow _{36}^{86}\textrm{Kr}+_2^4\textrm{He}

You might be interested in
Balance the following equation. Then determine the ratio for the products KCl and O2 generated during the decomposition of potas
drek231 [11]
The answer is 2:3 for plato users

6 0
3 years ago
Read 2 more answers
Which term best describes the role of hydrogen gas in the formation of water molecules?
kobusy [5.1K]
The answer is D, reactant.
6 0
4 years ago
Which of the statements about elements is true?
Jet001 [13]

1. No two elements have the same kind of atom.

Explanation:

The correct of all statement is that no two elements have the same kind of atoms.

Every element have different atoms.

  • Over a hundred elements have been identified by scientists.
  • Atoms are the smallest particles that takes part in chemical reactions.
  • Elements are distinct substances that cannot be split.
  • Atoms of all elements do not have the same mass and volume. Isotopes are examples.
  • It is true that atoms of all elements have different masses and also different volumes.
  • The volume of an atom is function of the number of electrons it contains.

learn more:

Dalton model of the atom brainly.com/question/1979129

#learnwithBrainly

3 0
3 years ago
Read 2 more answers
1 pentagram equals how many grams
Fofino [41]

Answer:

5 grams.

Explanation:

Anything that weighs 5 grams, technically, is a pentagram.

7 0
3 years ago
Indicate which of the following statements is FALSE.a. Covalent bonds connect nucleotides in a strand; noncovalent interactions
LenaWriter [7]

Answer:

The false statement is d Avery,Macleod and McCarty showed that DNA is the genetic information of cells and RNA is the genetic information in the viruses .

Explanation:

Avery,Macleod and MacCarty showed that DNA is the genetic material of the cell.

     On the other hand Fraenkel, Conrat and Sanger carried out their experiment on tobacco mosaic virus to prove that RNA act as genetic material in some viruses.

8 0
3 years ago
Other questions:
  • Determine the number of significant figures in each of the following measurements
    7·2 answers
  • From which plant can benzoic acid be obtained from?​
    11·1 answer
  • Write the expression for the equilibrium constant Keq for the reaction below: 2CO(g) + O2(g) ⇔ 2CO2(g) a. [CO2] / [CO] [O2] b. [
    8·1 answer
  • A student claims that water's polarity is the reason it has a high specific heat.
    10·1 answer
  • Why does an increase in temperature typically cause an increase in rate of reaction?
    6·1 answer
  • 6. A 3 liter solution contains 140 g of Sodium Bromide (NaBr). What is the molarity of the solution?
    11·1 answer
  • Why is the regression equation not exactly y = 100 • 0.5n?
    14·1 answer
  • What is a phase change that occurs when a solid transitions directly into a gas state without becoming a liquid?
    15·1 answer
  • If there are 94 different kinds of naturally occurring atoms how many different naturally occurring elements are there?
    14·1 answer
  • What are the products for the following equation?<br><br>NaCl + H2O -&gt;​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!