Consider the two electron arrangements for neutral atoms a and b. what is the atomic number of a?
a - 152, 252, 2p6,35
b - 152, 252, 2p6,5s
a.11
b.8
c.19

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

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How are isotopes of the same element alike?