<p>As per ReNiSh A R's post, the answer is Mercury.</p>

<p>A quick Google search took me here:
<a href="http://en.wikipedia.org/wiki/Timeline_of_chemical_element_discoveries" rel="noreferrer">http://en.wikipedia.org/wiki/Timeline_of_chemical_element_discoveries</a> &lt;= second result!</p>

<p>If you control-F search the page, you'll find the following:</p>

<p>Mercury - discovered before 2000BC, so the planet will have been named after the element</p>

<p>Plutonium - About 1940/41, meaning it would have been named after Pluto (before it was declassified as a planet)</p>

<p>Uranus - Uranium discovered around 1789</p>

<p>Neptune - Neptunium discovered 1940</p>

<p>In addition, the only one of those having exactly the same name for both the planet and the element is Mercury.</p>

CC BY-SA 3.0
2014-02-07T10:19:08.083Z
2014-02-07T10:19:08.083Z
stealth_angoid
<pre><code>Mercury -  Mercury(hg-80)
</code></pre>

<p><code>Mercury</code> will be the Answer, Because <code>Mercury</code> is Very clear name with the 80th Element so planet is(However, Mercury was named after the <code>Roman God</code> which was related to what they called <code>quicksilver</code>).</p>

CC BY-SA 3.0
2014-02-07T08:08:57.010Z
Plain wrong. For Uranium, Neptunium and Plutonium it's the other way around.
Envite
CC BY-SA 3.0
2014-02-07T05:19:06.113Z
2014-02-09T11:16:27.403Z
2014-02-09T11:16:27.403Z
NiiL
<p>The answer is <strong>Mercury</strong>.</p>

<p><strong>Plutonium</strong> was made after <strong>Pluto</strong> was discovered.</p>

CC BY-SA 3.0
2014-02-07T05:14:21.073Z
2014-02-07T05:14:21.073Z
ReNiSh AR
<p>Which planet is also the name of an element?</p>

<p>I came across this question on cosmos quest and need and answer</p>

CC BY-SA 3.0
2014-02-07T03:13:44.847Z
Can't you just take the nine (eight?) planet names and look for each in an alphabetic list of the elements?
DJohnM
CC BY-SA 3.0
2014-02-07T08:09:54.843Z
This question appears to be off-topic because it shown no previous investigation AT ALL.
Envite
CC BY-SA 3.0
2014-02-08T03:33:37.620Z
If you're going to count dwarf planets (Pluto/Plutonium), you should also count Cerium, which was named after Ceres (which was still classified as a planet when the element Cerium was named after it).
Keith Thompson
<planet>
Which planet is also the name of an element?
user1605665
# Which planet is also the name of an element?

(Asked by: username_0 on 2014-02-07)

Which planet is also the name of an element?

I came across this question on cosmos quest and need and answer

**Tags:** planet
> **Comments:**
> **username_1**: Can't you just take the nine (eight?) planet names and look for each in an alphabetic list of the elements?  
> **username_2**: This question appears to be off-topic because it shown no previous investigation AT ALL.  
> **username_3**: If you're going to count dwarf planets (Pluto/Plutonium), you should also count Cerium, which was named after Ceres (which was still classified as a planet when the element Cerium was named after it).  

---

## 3 answers

### Answer by username_6 on 2014-02-07. Score: 11 | Accepted answer

The answer is **Mercury**.

**Plutonium** was made after **Pluto** was discovered.


---

### Answer by username_4 on 2014-02-07. Score: 5

As per ReNiSh A R's post, the answer is Mercury.

A quick Google search took me here:
<http://en.wikipedia.org/wiki/Timeline_of_chemical_element_discoveries> <= second result!

If you control-F search the page, you'll find the following:

Mercury - discovered before 2000BC, so the planet will have been named after the element

Plutonium - About 1940/41, meaning it would have been named after Pluto (before it was declassified as a planet)

Uranus - Uranium discovered around 1789

Neptune - Neptunium discovered 1940

In addition, the only one of those having exactly the same name for both the planet and the element is Mercury.


---

### Answer by username_5 on 2014-02-07. Score: 2

Mercury -  Mercury(hg-80)

Mercury will be the Answer, Because Mercury is Very clear name with the 80th Element so planet is(However, Mercury was named after the Roman God which was related to what they called quicksilver).

> **Comments:**
> **username_2**: Plain wrong. For Uranium, Neptunium and Plutonium it's the other way around.  

---

