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coldgirl [10]
3 years ago
8

How are the elements Neon, Selenium, and Fluorine ordered from most reactive to least reactive?​

Chemistry
1 answer:
Burka [1]3 years ago
4 0

Answer:

selenium, fluorine and neon

Explanation:

the less valence electrons an element has, the more reactive.

selenium has 6 valence electrons

fluorine has 7 valence electrons

neon has 8 valence electrons

So, it is ordered from the least number of valence electrons to the most

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3 0
3 years ago
A textbook measures 250 mm long, 225 mm wide and 50 mm thick. What is the volume of this book in mm3? What is the volume of this
Dvinal [7]

Answer:

2.81 × 10⁶ mm³

2.81 × 10⁻³ m³

Explanation:

Step 1: Given data

Length (l): 250 mm

Width (w): 225 mm

Thickness (t): 50 mm

Step 2: Calculate the volume of the textbook

The book is a cuboid so we can find its volume (V) using the following expression.

V = l × w × t = 250 mm × 225 mm × 50 mm = 2.81 × 10⁶ mm³

Step 3: Convert the volume to cubic meters

We will use the relationship 1 m³ = 10⁹ mm³.

2.81 × 10⁶ mm³ × 1 m³ / 10⁹ mm³ = 2.81 × 10⁻³ m³

6 0
3 years ago
What, if any, is the relationship between atomic radius, ionization energy and electronegativity?
TEA [102]
All 3 increase going right to left and top to bottom on the periodic table <span />
5 0
3 years ago
how many significant figures does the following number contain : 0.0972how many significant figures does the following number co
jekas [21]

Answer:

3 significant figures that is 9,7 and 2

8 0
3 years ago
Which statement is a chemical reaction?
denis23 [38]

Answer:

Electron bonds break and reattach to other atoms

Explanation:

Most chemical reactions involve the breaking of bonds

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