- Which of the following were present in large amounts about a thousand years af

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Question

- Which of the following were present in large amounts about a thousand years after the big bang? Select all correct answers

1. Free muons

2. Completely ionized helium

3. Free quarks

4. Completely ionized nuclei heavier than helium

5. Free electrons

6. Neutral atoms

7. Free protons

8. Photons

- Which of the following were present in large amounts at about a billion years after the big bang? Select all correct answers.

1. Free muons

2. Completely ionized helium

3. Free quarks

4. Completely ionized nuclei heavier than helium

5. Free electrons

6. Neutral atoms

7. Free protons

8. Photons

- Which of the following were present in large amounts at about three minutes after the big bang? Select all correct answers

1. Free muons

2. Completely ionized helium

3. Free quarks

4. Completely ionized nuclei heavier than helium

5. Free electrons

6. Neutral atoms

7. Free protons

8. Photons

- Which of the following were present in large amounts about a thousand years after the big bang? Select all correct answers

A) Answer is option 6

Electrically neutral atoms formed in large amounts about a thousand years after the big bang

B) Answer is option 4

Completely ionized nuclei heavier than helium were present in large amounts at about a billion years after the big bang

C) Answer is 5 and 7

Though simple atomic nuclei formed within the first three minutes after the Big Bang.

The first subatomic particles included protons, neutrons, and electrons

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