Answer : The temperature of the gas is, 245.9 K
Explanation :
To calculate the temperature of gas we are using ideal gas equation:
where,
P = pressure of gas = 2770.96 torr = 3.646 atm
Conversion used : (1 atm = 760 torr)
V = volume of gas = 88.84 L
T = temperature of gas = ?
R = gas constant = 0.0821 L.atm/mole.K
w = mass of gas = 609.64 g
M = molar mass of 
gas = 38 g/mole
Now put all the given values in the ideal gas equation, we get:
Therefore, the temperature of the gas is, 245.9 K
Answer: Family 16 is most likely to accept 2 electrons.
Explanation:
Family 16 has the electronic configuration 
. As to attain stability the p orbital will readily accept 2 electrons.
Therefore, family 16 is most likely to accept 2 electrons. Family 16 is also known as chalcogens.
Whereas, family 2 has the electronic configuration 
. As the s orbital is completely filled so there is no need to accept 2 electrons.
Family 12, and family 18 has the electronic configuration ![[Ar] nd^{10} ns^{2}](https://tex.z-dn.net/?f=%5BAr%5D%20nd%5E%7B10%7D%20ns%5E%7B2%7D)
and ![[He]ns^{2} np^{6}](https://tex.z-dn.net/?f=%5BHe%5Dns%5E%7B2%7D%20np%5E%7B6%7D)
respectively.
Both family 12 and 18 has completely filled orbitals so it will not accept any electrons.
Same size mass and composition
Explanation:
Gravitational potential energy
= mgh = (45kg)(9.81N/kg)(2m) = 882J.
The question is incomplete; the complete question is;
In the early 1900s many scientists thought that an atom consisted of a positive substance with negative charges scattered throughout the substance. Then Ernest Rutherford completed an experiment that changed the concept of an atom. His discovery led to the understanding that an atom consists mostly of empty with space with-
Protons orbiting a dense nucleus made of electrons and neutrons
Electrons orbiting a dense nucleus made of protons and neutrons
Neutrons and protons orbiting a cloud of electrons
Electrons and protons orbiting a cloud of neutrons
Answer:
Electrons orbiting a dense nucleus made of protons and neutrons
Explanation:
Rutherford established the nuclear theory of the atom by his famous experiment. In his experiment, alpha particles were used to bombard a thin gold foil and the movement of the particles was observed on a moveable zinc sulphide screen.
It was discovered from the experiment that the atom was mostly made up of empty space. The electrons orbit a dense nucleus comprising of protons and neutrons.
