Ask question

Ask question

All categories

2 years ago

9

What element has two electrons in the outer shell and has electrons in four shells?

1 answer:

Paladinen [302]2 years ago

5 0

<span>Calcium. It is classified chemically as one of the alkaline earth elements. It is found in group two of the periodic table. It forms a white coating of calcium nitride (Ca3N2) in air. The symbol is classified as Ca. It is a metallic metal.</span>

You might be interested in

Plzz help mee asapp dmxkxksms

Korolek [52]

Answer:

1. a part of the soil that contains decayed plant or animal matter

2. erosion

3. topsoil

Explanation:

Hope this helped :)

6 0

3 years ago

Green plants absorb sunlight to power photosynthesis, the chemical synthesis of food from water and carbon dioxide. The compound

Kamila [148]

Answer:

$698 \ THz$

Explanation:

Data provided as per the question below:-

Wavelength = 430.nm

The computation of the frequency of the light is shown below:-

Frequency = Velocity of light ÷ Wavelength

The Velocity of light = $= {3.0 \times 10^8 \ m/s}$

Wavelength = 430 nm = $4.30 \times 10^-^7$ m

Frequency = $\frac{3.0 \times 10^8 \ m/s}{4.30 \times 10^-^7}$

$= 6.98 \times 10^1^4 \ hz$

$= 6.98 \times 10^2 \ Thz$

= $698 \ THz$

Therefore for determining the frequency we simply applied the above formula.

4 0

3 years ago

What weather types affect earthworms?

torisob [31]

Usually when it rains the worms surface!

HOPE THIS HELPS!

4 0

3 years ago

Lyrx [107]

Answer:

Hshsshjsiiiiwwwuauuauw2ywywwywi

3 0

3 years ago

Question 8 Saved Which of the following energy transformations occurs when you eat a hamburger? Question 8 options: The chemical

Stels [109]

The first one is the answer.

6 0

3 years ago