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The bar chart shows the period of elements from lithium to neon.Which property of these elements is shown on the chart?

Correct answer: A. The number of electrons used in bonding

  • A. The number of electrons used in bonding
  • B. The number of orbits holding electrons
  • C. The (proton) atomic number
  • D. The relative atomic number

Explanation

A. Lithium uses 1 electron in bonding, Beryllium 2, Boron 3, Carbon 4, Nitrogen 3, Oxygen 2, Fluorine 1 and Ne being a noble gas doesn't make any bonding. The graph clearly indicates the number of electrons used in bonding therefore Answer is A.B. The orbit is the same so it doesn't matter therefore it's wrong.C. Proton number increases to the right therefore Option C doesn't give the accurate information about the graph.D. Atomic Number increases to the right therefore Option D doesn't give the accurate information about the graph.

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About Periodic Properties and Trends

Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.

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