When radium-226 decays to form radon-222, the radium nucleus emits a(an)

1 answer:

8 0

I believe the correct answer from the choices listed above is option A. When radium-226 decays to form radon-222, the radium nucleus emits an alpha particle. Alpha decay is a radioactive process in which a particle with two neutrons and two protons is ejected from the nucleus of a radioactive atom.

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Simora [160]

Answer:

n+1

Step-by-step explanation:

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5 0

3 years ago

Enter an expression equivalent to (3x^2+2y^2-3x) + (2x^2+y^2-2x) - (x^2 + 3y^2 +x)

11111nata11111 [884]

Answer:

4x² - 6x

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Distributive Property

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)

Step 2: Simplify

[Distributive Property] Distribute negative: 3x² + 2y² - 3x + 2x² + y² - 2x - x² - 3y² - x
Combine like terms (x²): 4x² + 2y² - 3x + y² - 2x - 3y² - x
Combine like terms (y²): 4x² - 3x - 2x - x
Combine like terms (x): 4x² - 6x

4 0

3 years ago

Name the type of symmetry for the figure.

tangare [24]

I'm pretty sure it's B. rotational

6 0

4 years ago

Read 2 more answers

What is the solution set to this inequality?? x^2-12x+35<_ 3

Igoryamba

-8,-6,-4

-10,-6,0