Answer:
True
Explanation:
The more of each substanse that you add to the bag will cause it to produce faster and more gas.
Answer:
<em>It is known by almost everyone Earth is divided into longitudes and latitudes which are imaginary lines that cut Earth into 2 equal parts.</em>
Explanation:
The main use of dividing Earth into so many imaginary lines is to know no of places perfect location in numbers. Direction and tell tales can make the place talked about a bit confusing but the exact longitudes and latitudes known pill and someone in exact position.
So in the positions given the question 27 ° and 19 ° show the distance of longitude from Prime Meridian While 18 ° and two degrees show the distance from the equator.
There are 6 electrons in the atom of a carbon.
The first atomic level will be occupied by 2 electrons while the second will be occupied by 4 electrons.
Based on this, the outer valence shell of carbon (which is L shell) will be occupied by 4 electrons.
A) All Nitrogen atoms have 7 protons. - correct answer
Explanation:
You find the nitrogen (N) in the group 15, period 2 of the periodic table. The the atomic number of nitrogen is 7 and from this we deduce that nitrogen have 7 protons and 7 electrons.
A) All Nitrogen atoms have 7 protons. - correct
B) The mass number of Nitrogen is 21. - incorrect, the mass number of nitrogen is 14.
C) All Nitrogen atoms have 14 protons. - incorrect, all nitrogen atoms have 7 protons.
D) Nitrogen atom has more protons than a Fluorine anion. - incorect, fluorine (F) have an atomic number of 9 so it will have 9 protons, which is less than the number of nitrogen protons.
Learn more about:
atomic number
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Answer:
= 4 * 10-8 = 400 Angstrom
Explanation:
EF = 5 eV, K = 4.29 x 102 J/(s m K), and Cvel = 1% of the lattice heat capacity
K= 1/3 (Cv)*v*l
v is fermi velocity which is equal to 
after putting mass of electron as 
and 
we get 
is 1% of lattice heat capacity
Heat Capacity of Aluminium is 
Density = 
For lattice heat capacity you need to use the heat capacity for alimunium given and then multiply with density to get per unit volume term
Heat Capacity per unit volume = *
Cv = 1% of heat capacity per unit volume
Putting values in this equation K= 1/3 (Cv)*v*l
= 400 Angstrom
