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Where is located the element with the electron
configuration [Kr] 5s? in the periodic table?
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B - In period 5 and group 10
C - In period 4 and group 10
D - In period 5 and group 12

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

Explanation for basic character?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space