Answer:
Hey how are you all doing the answer is 8.93 g
Explanation:
It’s used by demographers to represent and understand the structure, growth and evolution of human populations
Answer:
circulatory system
Explanation:
it is what makes oxygen circulate
The IUPAC name of the compound shown in the image is 4-bromo butyne.
<h3>What is IUPAC?</h3>
IUPAC is a body in chemistry that stands for International Union of Pure and Applied Chemistry.
IUPAC functions in the naming of organic compounds in chemistry.
According to the image in this question, the functional group of the compound is a triple carbon bond meaning that it is an alkyne.
Bromine is attached to the fourth carbon, hence, the IUPAC name of the compound is 4-bromo butyne.
Learn more about IUPAC at: brainly.com/question/1458253
Answer:
D) atomic radii increase from top to bottom of a group
Explanation:
Atomic radii trend along group:
As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.
As the size of atom increases the ionization energy from top to bottom also decreases because it becomes easier to remove the electron because of less nuclear attraction and as more electrons are added the outer electrons becomes more shielded and away from nucleus.
Other options are incorrect because,
A) atomic radii increase from left to right across the period
Correct = atomic radii decreases from left to right across the period
B) ionization energy increases from top to bottom within a family
Correct = ionization energy decreases from top to bottom within a family
C) electronegativity decreases from left to right across a period
Correct = electronegativity increases from left to right across a period
