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
Mandarinka [93]
3 years ago
15

Please help please ❤️❤️ !!

Chemistry
1 answer:
Lapatulllka [165]3 years ago
6 0

Answer:

See attached picture!

Explanation:

There are two types of radioactive decay: alpha and beta.  

Alpha decay removes a helium atom from the original element, causing the original mass number to decrease by 4 and the original atomic number to decrease by 2.  

Beta decay removes an electron from the original element, causing the original mass number to remain the same and the original atomic number to increase by 1.

To solve your problems, you need to identify which decay is most likely to happen.  You could do this by checking the possible answer choices.  Usually, professors tell you which decay you are expected to write an equation of, but in this case, it's a matter of trial and error in order to get the answer.

You might be interested in
How many electrons are in the highest occupied energy level of these atoms?
Yuliya22 [10]
Excuse me not giving an explanation; I haven't even learned chemistry before. I usually give explanations for math/english.

I think it would be for flourine: 7
aluminum: 8
can't help with the rest...
sorry!
8 0
3 years ago
Which one of the following properties is NOT a chemical property? (5 points)
telo118 [61]

Answer:

a

Explanation:

Density is a physical property.

8 0
3 years ago
What is the enthalpy change for this reaction?
Mrrafil [7]

Answer:

Do you have a picture

or can you state the reaction

5 0
3 years ago
Which is one of the big ideas that guides earth science? A. Earths waters B. Earth in the universe C.Earth in the solar system D
leonid [27]

D. Evolution of life on earth

6 0
2 years ago
What is the density of an object that has a mass of 5kg and a volume of 50cm(3)
natta225 [31]
Density = mass/volume 

5/50/100³

100000 kg/m³

10^5<span> kg/m</span>³
4 0
3 years ago
Other questions:
  • In order from LEAST density to most in order
    10·1 answer
  • If we have equal masses of copper at 80oC and water at 20oC and we put them together, what is the final temperature?
    9·1 answer
  • what is a measure of the amount of matter in an object while what is a measure of the force of gravity acting on an object
    5·1 answer
  • How many liters of NH3, at STP, will react with 19.5 g O2 to form NO and H2O?
    5·1 answer
  • A 0.8kg object displaces 500ml of water what is its specific gravity
    7·1 answer
  • Students were given four unknown substances and asked to observe their
    11·1 answer
  • Strong bases are good conductors of:
    8·2 answers
  • Is this atom more likely to gain electrons or to lose electrons? Explain how you can tell
    8·1 answer
  • Help mee please (I will give the person who answers this a brainlist)
    5·2 answers
  • Arrange the following elements in order of decreasing metallic character.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!