the rod that shows the first increase in temperature
Explanation:
The rod that shows the first increase in temperature is that which has the best thermal conductivity. Thermal conductivity is the ability of a substance to conduct heat.
- Most metals have a high thermal conductivity which results from the transfer of heat due to the fixed vibration of their atoms.
- Substances that conducts heat faster will increase in temperature progressively well are good thermal conducts.
- This shows the relative ease with which their component atoms are able to vibrate and transfer heat.
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Answer: A because blood is mainly made of RBC and also all the other answers don't seem right.
Answer: it’s carbon dioxide
Explanation:
This is it because decomposition takes place when carbonic acid breaks down So that’s why I put carbon dioxide
Answer:
Sodium
Explanation:
The given elements are present in period three.
As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.
Sodium is present at the start of period three so its atomic radius is greater while the smallest atomic radius will be of chlorine.
Answer:
proton
Explanation:
The atoms is made from a nucleus and a electronic shell. The nucleus is composed from protons (positively charged) and neutrons (no charge). The electronic shell is defined by the presence of electrons (negativity charged).
Now a particular element is identified by the number of protons which have to be equal to the number of electrons in the electronic shell. A particular element may have the same number of protons but different number of neutrons, these are isotopes which have the same chemical properties.