Answer:GASEOUS, LOWERING ,EMITTED AS HEAT, DOWN,DO NOT RELEASE,DECREASES,NEGATIVE.
Explanation: Filling the blanks gives
Lattice energy is associated with forming a crystalline lattice of alternating cations and anions from the _GASEOUS___________ ions.
Because the cations are positively charged and the anions are negatively charged, there is a LOWERING of potential- as described by Coulomb's law-when the ions come together to form a lattice energy.That energy is EMITTED AS HEAT when the lattice forms.
As the ionic radii increases as you move DOWN a group, ions cannot get as close to each other and therefore DO NOT RELEASE as much energy when the lattice forms. Thus the lattice energy DECREASES (becomes less) NEGATIVE as the radius increases.
The above gives the definition of Lattice Energy and how it relates to atomic and ion charge.
Answer:
9400 Grams to Kilograms
To change the mass we use formula [kg] = [9400] / 1000
The Atomic Number and Atomic Mass of ¹⁸O₈ are 8 and 18 respectively.
Atomic Number:
Atomic Number of Element is the Number of Protons contained by the Element. So, there are 8 Protons in ¹⁸O₈.
Atomic Mass:
Atomic Mass of Element is the total number of Protons and Neutrons present in the Nucleus of that element.
So,
Atomic Mass = # of Protons + # of Neutrons
As the Atomic mass of ¹⁸O₈ is 18 and it has 8 protons, So # of Neutrons are calculated as,
# of Neutrons = Atomic Mass - # of Protons
# of Neutrons = 18 - 8
# of Neutrons = 10
Result:
In ¹⁸O₈ Number of Neutrons are 10, Number of Protons are 8.
Z = 8 , n = 10
A because if you calculate it the anwser is a
