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SOLVED:Question 4 376 Find radium (atomic number: 88) on the provided periodic table: Answer the following about radium: (a) What block is it in? (b) How many valance electrons does it have? (
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Radium is the chemical element with atomic number 88, symbol Ra
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yttrium | chemical element | Britannica
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Solved 3. The heaviest known alkaline earth metal is radium, | Chegg.com
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Atomic Theory Modern Model. atom (page 313) smallest part of an element that has all the properties of the element. - ppt download