What is the gas-particle theory?

The kinetic theory of matter (particle theory) says that all matter consists of many, very small particles which are constantly moving or in a continual state of motion.

Explanation:

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+1

Explanation:

Let x be the missing value in the equation as shown below:

²²₁₁Na —> ²²₁₀Ne + ⁰ₓβ

The missing value (x) can be obtained as follow:

11 = 10 + x

Collect like terms

11 – 10 = x

1 = x

x = 1

Therefore, the missing value (x) is +1 and the balanced equation is:

²²₁₁Na —> ²²₁₀Ne + ⁰₁β