<span><span>Atomic number19
</span><span>Atomic mass<span>39.0983g.mol -1
</span></span><span>Electronegativity according to Pauling0.8
</span><span>Density<span>0.86
g.cm -3 at 0 °C
</span></span><span>Melting point <span>63.2 °C</span></span></span>
Suppose the gas is ideal gas. According to the ideal gas equation of state, pV = nRT, the pressure is unchanged. So Vi/Ti = nR/p = Vn/Tn. (i stands for initial and n stands for new) So the new volume Vn = 3.67 L
negatively
Positively
Neutrally
Explanation:
An object that is negatively charged has more electrons than protons.
An object that is positively charged has fewer electrons than protons.
An object that is neutrally charged has the same number of electrons and protons.
The subatomic particles in an atom are protons, neutrons and electrons.
Protons are the positively charged particles in an atom
Electrons are the negatively charged particles in an atom
Neutrons do not carry any charges.
When an atom is neutral, it has equal number of protons and electrons.
When an atom forms a cation, the number of protons is greater than electrons and it suggest that it has lost electron. This is therefore positively charged.
When an atom forms an anion, the number of electrons is greater than the number of protons. It suggests that it has gained electrons. This is therefore negatively charged.
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Answer: Matter is made of atoms. Solids, liquids, gases, and plasma are all matter. When all atoms that make up a substance are the same, then that substance is an element. Elements are made of only one kind of atom.
Explanation:
Answer:
Can either be a solid, a liquid or a gas
Explanation:
A solvent can either be a solid, liquid or a gas. It is the carrier medium in a solution. It is the one in which the solute is dissolved.
Although quite unusual, a solvent might also be a solid. An important application of this can be seen in the production of alloys. Alloys are mixture of metals. To produce let’s say an alloy containing just two metals, the use of a solid solvent is needed. Here, one of the two metals is known as the base metal. It is this base metal that will serve as the carrier medium for the other metal
