Hydrogen is the lightest of elements with atomic number one.

  1. Hydrogen is the lightest of elements with atomic number one. When hydrogen gas reacts with bromine gas, they form hydrogen
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  2. An illustration shows the periodic table of elements with elements arranged in increasing order of atomic number in 18 columns
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  3. What is unique about how the periodic table of the elements is organized?(1 point)Responses Elements are grouped by multiples of
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  4. Question 2 (2 points)The atomic number determines the identity of an element. The atomic number is the number of protons in the
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  5. What is unique about how the periodic table of the elements is organized?(1 point)Responses Elements are grouped by multiples of
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  6. What is unique about how the periodic table of the elements is organized?(1 point) Responses Elements are grouped by multiples
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  7. What is unique about how the periodic table of the elements is organized?(1 point)Responses Elements are grouped by multiples of
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  8. What is unique about how the periodic table of the elements is organized?(1 point)Responses Elements are grouped by multiples of
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  9. Given the following Unknown atoms with their respective atomic numbers,X; Atomic number 19, Y; Atomic number 15, a. Deduce the
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  10. What is unique about how the periodic table of the elements is organized?A. Elements are grouped by multiples of atomic number.
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