Answers
1. 8 electrons
2. 10 electrons
3. 10 electrons
4. 8 from the oxygen atom and 1 from each of the 2 hydrogen atoms
5. 4 hydrogen bonds
Explanation
The atomic number of oxygen is 8 thus it has a total of 8 electrons. When writing the electron configuration for the oxygen, the first n shell requires two electrons to complete the 1st orbital. The fact that 1s holds a maximum of 2 electrons the next 2 electrons of oxygen goes to 2s orbital. The 2s orbital takes a maximum of two electrons and the remaining 4 electrons occupy the 2p orbital. The configuration formed will be 1s² 2s² 2p4 .The maximum number of electrons in the second shell is 2n²=2×2² =8 from the formula 2n² (the maximum number of electrons in a shell). The total number of electrons in the second shell is 2(in s orbital) +4 (in p orbital) =6.The number of unpaired electrons is 8-6=2
A water molecule has four hydrogen bonds, because it is made up of two hydrogen atoms and an oxygen atom. A water molecule has 10 protons and 10 electrons thus it is neutral. In the water molecule there is formation of covalent bonds where oxygen atom and hydrogen atoms share electrons though the sharing is not equal. In the covalent bond, the oxygen atoms attract electrons more than the hydrogen atoms.
Answer:
A. Left ventricle; systemic
Explanation:
The ventricles are located on the posterior end of the heart beneath their corresponding atrium. The right ventricle helps to receives deoxygenated blood from the right atria and pumps it through the pulmonary vein and into pulmonary circulation, then transported into for gas exchange via the lungs.
The left ventricle receives oxygenated blood from the left atria and pumps it through the aorta into systemic circulation in order to supply the tissues of the body with oxygen.
The walls of the ventricles are the thickest and strongest. This is because the amount of work on the left ventricles, which pump blood throughout the body and lungs, is much greater than the pressure generated by the atria to fill the ventricles.
Answer:
The F2 generation can be explained because the alleles for flower colour and pollen shape are linked.
Explanation:
<em>When two alleles are linked on the same chromosome, there is a high tendency for the alleles to be inherited together. Consequently, the frequency of the alleles recombining in subsequent generations is low.</em>
This is what Bateson and Punnet observed. There exist a linkage between P and L alleles and also p and l alleles, thereby increasing their frequencies of occurring together and decreasing the frequency of their recombination.
Thus, the F2 generation observed by Bateson and Punnet is due to linkage of alleles.
Answer:
Step 1: Write out your key in terms of what's dominant and recessive. Step 2: Determine the genotypes of the parents and write out the cross. Step 3: Figure out what kinds of gametes each parent can produce. Step 4: Set up a Punnett square for your mating.
Explanation:please give brainliest
