<span>Atoms are at their most stable when their outermost energy level is either empty of electrons or filled with electrons.</span>
Answer:
Noble gases
Explanation:
Neon and argon have 8 electrons in their outermost shells. The elements which have 8 electrons in the outermost shell or in the valence shell,are known as the noble gases.
Answer:
7.5 x 10 ^-11
Explanation:
6/8 = .75
10^2 / 10^12 = 10^ (2-12) = 10^(-10)
so far .75 x 10^-10
which is 7.5 x 10^-11
Multicellular organisms can<span> be much larger and more complex. This is because the </span>cells<span> of the</span>organism<span> have specialised into many </span>different<span> types of </span>cells<span> such as nerve </span>cells<span>, blood </span>cells, musclecells<span> all performing </span>different<span> functions</span>
243.92J
Explanation:
Given parameters:
Mass of the aluminum cup = 42.14g
Initial temperature of the cup, t₁ = 20°C
Final temperature of the cup t₂ = 26.41°C
Specific heat capacity of aluminium = 0.903 J g⁻¹ °C⁻¹
Unknown:
Change in heat of the aluminium cup, q = ?
Solution:
The heat lost during the experiment is the heat gained by the aluminum cup.
The quantity of heat is found using the expression below:
q = m C Δt
m is the mass of the cup
C is the specific heat of the cup
Δt is the change in heat
q = 42.14 x 0.903 x (26.41 - 20) = 42.14 x 0.903 x 6.41
q = 243.92J
Learn more:
Specific heat capacity brainly.com/question/7210400
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