Myleekania0870
Myleekania0870 Myleekania0870
  • 12-09-2021
  • Physics
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HELPPPP PLEASEEE , anyoneeee ?

HELPPPP PLEASEEE anyoneeee class=

Respuesta :

mohamedraaif00
mohamedraaif00 mohamedraaif00
  • 12-09-2021

Answer:

1.....

2.....

Explanation:

1. For the elements in column 1,2 and 13-18 the atoms in the same column have the same amount of outermost electrons, called valence electrons. Atoms in column 1 (H, Li and Na for example) have 1 valence electron.

2. Electron affinity increases from left to right across the periodic table. This is caused by the decrease in atomic radius. As we already explained, moving from left to right across a period, atoms become smaller and smaller as the atomic number increases.

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