Explanation:
Quite a number of properties varies across a period. Some remains constant whereas others decreases.
As one moves from left to right;
- The energy level remains the same.
- The ionization energy increases progressively as a result of increasing nuclear charge.
- Electron affinity increases from left to right.
- Electronegativity increases.
- Electropositivity decreases.
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Periodic table brainly.com/question/2014634
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Answer:
Excited State
Explanation:
It's when electrons absorb energy and move to a higher level.
B,Si,Ge,As,Sb,Te, and At are all the metalloids on the periodic table of elements.
<span>A chemical change has occurred creating a precipitate.
Just had that question on a quiz. XP
Hope I helped :)</span>
