Question

Moving from the element with atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. In three to five sentences, identify the direction of the change, and give two reasons for the change. ​

Answer 1

Reactivity increases when moving from Neon (atomic number 10) to Sodium (atomic number 11) due to Sodium's lower ionization energy and larger atomic radius, facilitating the loss of its outer electron.

Step-by-step explanation:

Moving from the element with atomic number 10 (Neon) to the element with atomic number 11 (Sodium), there is an increase in reactivity. This change is due to two main factors. First, Sodium has a lower ionization energy compared to Neon, which means it can lose its valence electron more readily. Second, Sodium's atomic radius is larger than Neon’s, placing its valence electron further from the attractive force of the nucleus and making it easier to remove. These factors make Sodium, which is an alkali metal, much more reactive than the noble gas Neon.

Answer 2

first, consider the two elements: Neon and Sodium.

now read about their characteristics.

Step-by-step explanation:

Here is a start.

Ne has its outside shell full of electrons; therefore, its reaction with other elements is minimal if at all. Na, the next element, has 1 more proton and 1 more electron. More importantly that added electron is in the outside shell. It can fill that shell by ADDing 7 more electrons or LOSing the one electron. Obviously, it loses the one electron and it does so with gusto which makes Na a very reaction element while Ne is not reactive at all. Now follow oobleck's instructions, add what you read to what I've written,then summarize all of it in your own words.