Gas "floats" so if there are examples or pictures it would be the one with the most evenly spread out "dots".
Answer:
E
Explanation:
All others conduct electricity and heat.
Answer:
O²⁻
Explanation:
Number of protons = 8
Number of neutrons = 9
Number of electrons = 10
What type of atom or ion is it = ?
Solution:
Protons are the positively charged particle in an atom
Neutrons do not carry any charges
Electrons are negatively charged particles
For this atom, the number of protons helps to identify what specie it is; so this is an oxygen atom.
Now,
Charge = Number of protons - Number of electrons
Charge = 8 - 10 = -2
The charge on the atom is -2 and so it is an oxygen ion with -2 charge
The ion is O²⁻
Anything less dense than water will float, like oil. Anything more dense than water will sink, like rock.
It doesn't mean that the climate is changing, it is probably just the morning dew.
