A.
The first energy level has 2 electrons, the second has 8, and the third has 4
Answer:
302 kj heat is released by lowering the temperature
Answer:
yuh
Explanation:
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Sodium has has 11 protons, 11 electrons and 12 neutrons.
<h3>What is the periodic table?</h3>
The periodic table shows the elements as they are arranged in increasing atomic number. The elements on the left hand side of the table are metals. Those on the right hand side of the table are mostly nonmetals.
A element in the first column is sodium;
The element Na is called sodium and it belongs to group 1 elements. It has 11 protons, 11 electrons and 12 neutrons.
Learn ore about sodium:brainly.com/question/24010534
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Any fire extinguisher should put out a fire, that is unless the extinguisher is old and faulty.