Sodium - Na is a neutral atom with 11 protons and 11 electrons.
protons are positively charged and electrons are negatively charged. Since the number of protons and electrons are equal, there are equal amounts of both positive and negative charges therefore they cancel out giving Na an overall neutral charge.
Na has 1 electron in the outermost energy shell, to become stable and to gain a noble gas configuration it loses the electron in its outermost shell.
Once it loses its electron, there are 11 protons and 10 electrons, having an overall positive charge of +1. Once atoms lose or gain electrons they become ions, since Na loses electrons its called a cation.
So in Na⁺, +1 stands for the net charge of the ion which is +1 or in other words Na has just lost one electron therefore is +1 positively charged
Answer:
25.56066
Explanation:
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<span>The ratio of oxygen-16 and oxygen-18 isotopes in plankton fossils in deep-sea sediments can be used to determine past temperatures.</span>
Answer: The ocean is made mostly of: D) Hydrogen and oxygen.
Explanation: The most abundant elements in the ocean by proportion of mass in percent are oxygen (85.84%), hydrogen (10.82%), chlorine (1.94%), sodium (1.08%), magnesium (0.13%), sulfur (0.09%), calcium (0.04%), potassium (0.04%), bromine (0.007%), carbon (0.003%), and boron (0.0004%).
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Kinetic energy is energy in motion. Which of these isn't in motion?
A lady walking slowly but surely down a street is moving, right? So that isn't right.
A hockey puck sliding on ice has motion.
A man running around a track definitely demonstrates kinetic energy.
But, a baseball glove doesn't. Maybe if it's moving on someone's hand, but by itself, it isn't moving.