Match these items. 1. ca 2. h2o 3. nuclear decay 4. nuclear synthesis 5. η 6. positive charge 7. e 8. number of protons in nucleus proton atomic number element compound fission electron neutron fusion

Explanation:

1. Ca  → element

Ca is a symbol of calcium element categorize as alkali earth metal.

2.  → compound

Compound is a substance made up of two more than two different elements.

3. Nuclear decay  → fission

Fission is defined as process in which heavier unstable nucleus divide itself into two or more smaller stable nuclei with release of large amount of energy.

4. Nuclear synthesis  → fusion

Fusion is defined as process in which two or more nuclei combines together to form an larger nucleus with release of large amount energy.

5. η  → neutron

One of the subatomic particle of an atom located in the nucleus of an atom with no electrical charge.

6. Positive charge  → proton

One of the subatomic particle of an atom located in the nucleus of an atom with positive electrical charge.

7. e  → electron

One of the subatomic particle of an atom located inside an atom and outside the nucleus of an atom with negative electrical charge.

8. Number of protons in nucleus → atomic number

Atomic number of an atom is equal to the total number of protons present in the nucleus if the an atom.

b.

explanation:

10.0

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000