Answer:
Hi, a cheerful teen willing to help,
wishing you a splendiferous day ahead...
Explanation:
1ai. The most dense is Tungsten.
1aii. The least dense is Sodium.
1aiii. The strongest is Tungsten.
1b. All metals conduct electricity.
They are all magnetic except magnetic.
and all solid at room temperature except mercury.
1c. Mercury is a liquid at room temperature.
1d. Tungsten is used as filament for light bulbs due to its high melting point and it doesn't oxidize, this the filament won't melt.
1e. The lump of gold will sink because it is more dense than mercury.
Answer:
3.38 moles of neon
Explanation:
First you have to multiply the volume (75.8 L) by the density to get the mass. Neon has a density of 0.9002 g/L at STP, we can just assume it's 0.9 g/L.
That leaves the mass at 68.22 g
Then, you divide the mass by the molar mass to get the number of moles. The molar mass of neon is 20.1797 u, we can leave it at 20.18
That leaves you at approximately 3.38 moles of neon
<h2>Cesium ion symbol and charge</h2>
Explanation:
- There are so many Elements that are discovered so far and many discoveries are still in pipeline .
- These elements are arranged in a tabular form that is modern periodic table .
- In that there are groups and periods
- There are 18 groups and 7 periods
1-2 groups : alkali and alkaline earth metal group
It consist of metals (typical metals ).
3 to 12 : transition metals
13-17 : non metals
18group - Inert gases .
In 1st group the elements are :
Hydrogen (H)
Lithium (Li)
Sodium(Na)
Potassium (K)
Rubidium(Rb)
Cesium (Cs)
Francium (Fr)
There valence electron is one and valency shown by them is also +1.
Therefore , the charge on each is +1 .
It I c because it is asking is the wind hard
Enough
