Answer:
Dopamine
please like this
silicon
lead
bismuth
Bismuth will not have the same number of valence electrons.
Valence electrons are those that are found in an atom's outermost electron shell. These electrons are involved in bonds and reactions because they are the farthest from the nucleus and as a result are less tightly held by the atom.
This implies that an element's reactivity, electronegativity, and the number of bonds it may form are all dependent on the number of valence electrons it possesses. The ability of an element to create bonds with other atoms is referred to as valence.
The number of hydrogen atoms an element can bond to (which is determined by how many valence electrons are available for bonding) has historically been used to determine an element's valence.
Therefore, Bismuth will not have the same number of valence electrons.
To learn more about valence electrons, refer to the link:
#SPJ2
Answer: The correct answer is bismuth.
Solution:
Bismuth is the member of group 15 of the periodic table.
Bismuth contains five valence electrons in its valence shell. Which can be seen from its electronic configuration:
Where as other three elements are the members of group 14 of the periodic table with three valence electrons in their respective valence shells.
Show calculation steps
Answer:
Conversion gives 42,107 km in total
Explanation:
A marathon covers 26 miles and 285 yards.
If 1 kilometer is 0.6214 miles, then how many kilometers are 26 miles, then:
1 km = 0.6214 miles
X = 26 miles
X = 41,841 km
Now if 1 yard is 36 inches, how many inches is 285 yards?
1 yard = 36 inches
285 yards = X
X = 10260 inches
If an inch is equal to 2.54 cm, how many centimeters are 10260 inches?
1 inch = 2.54 cm
10260 cm = X
X = 26060.4 cm
And 26060.4 cm is 0.260604 km
Finally, the sum of the distance would be:
41.841 km + 0.260604 km = 42.107 km
What is the total number of moles of O2(g) required for the complete combustion of 1.5 moles of C3H8(g)?
(1) 0.30 mol (3) 4.5 mol
(2) 1.5 mol (4) 7.5 mol
To calculate the atoms of an element in a given molecule, we need to multiply stoichiometry by the number that is written on the foot of that element. The moles of oxygen required is 7.5 mol.
Stoichiometry is a part of chemistry that help us in making relationship between reactant and product from quantitative aspects.
The balanced equation is
CH
(g) + 5O
(g)
3CO
(g) + 4H
O(g)
The mole ratio of CH
to oxygen is 1:5, means 1 mole of C
H
will react with 5 mole of oxygen. So, if we take 1.5 moles of C
H
then the amount of oxygen that will be produced will be 5 times the moles of
CH
. The moles of oxygen required to react with 1.5 moles of C
H
= 5× 1.5mol. Moles of oxygen required to react with 1.5 moles of C
H
=7.5 mol.
Therefore the moles of oxygen required is 7.5 mol.
To know more about stoichiometry, here:
#SPJ2
B. 3 protons, 1 electron, and 3 neutrons.
C. 2 protons, 2 electrons, and 1 neutron.
D. 3 protons, 2 electrons, and 1 neutron.
2-
B
1+
C
2+
D
1-
Answer:
B.) 1+
Explanation:
To obtain a full outer electron shell, sodium must lose one electron, leaving it with a plus one charge.