Jarvis's teacher gives him four cards each displaying information about an element and ask him to put them in order of reactivity the elements are carbon C helium h e magnesium mg and potassium K Jarvis arranges the elements in order from most reactive to least reactive shown in their diagram is Jarvis's Arrangement correct why or why not
don't see a diagram but from least to most it would be
He least reactive
C
Mg
K most reactive
To determine whether Jarvis's arrangement is correct or not, we need to compare the reactivity of the elements listed: carbon (C), helium (He), magnesium (Mg), and potassium (K).
In general, reactivity tends to increase as we move down a group in the periodic table and decrease as we move across a period from left to right.
Based on this, let's analyze Jarvis's arrangement:
1. Carbon (C): Carbon is a non-metal and is not very reactive. It forms covalent bonds and has a relatively low reactivity compared to metals.
2. Helium (He): Helium is a noble gas, which means it is extremely stable and has a completely filled outer electron shell. Noble gases are known for their lack of reactivity, and helium is no exception.
3. Magnesium (Mg): Magnesium is a metal and is moderately reactive. It readily forms ionic compounds and reacts with acids, but it is not as reactive as potassium.
4. Potassium (K): Potassium is a metal and is highly reactive. It is located in Group 1 (alkali metals) of the periodic table, which are known for their high reactivity. Potassium readily reacts with water and oxygen.
Based on this analysis, Jarvis's arrangement is not correct. The correct arrangement from most reactive to least reactive would be:
Potassium (K) > Magnesium (Mg) > Carbon (C) > Helium (He)
Potassium is the most reactive, followed by magnesium, carbon, and helium, which is the least reactive of the four elements.
To determine whether Jarvis's arrangement of the elements in order of reactivity (C, H, Mg, K) is correct or not, we need to compare the reactivity of these elements.
First, let's understand what reactivity means. Reactivity refers to how easily an element reacts with other substances or elements to form compounds. In general, elements towards the left side of the periodic table are more reactive, while elements towards the right side are less reactive.
Now, let's analyze Jarvis's arrangement:
1. Carbon (C): Carbon is a non-metal and is considered relatively unreactive compared to many other elements. It forms compounds through covalent bonding and is commonly found in organic compounds. It is not a highly reactive element.
2. Helium (He): Helium is a noble gas and is known for its very low reactivity. Noble gases are extremely stable and tend not to react with other substances. Therefore, helium is the least reactive element in this group.
3. Magnesium (Mg): Magnesium is an alkaline earth metal and is more reactive than carbon and helium. It readily reacts with many substances, including oxygen, to form compounds.
4. Potassium (K): Potassium is an alkali metal and is more reactive than both carbon and magnesium. Alkali metals are highly reactive, especially when exposed to air or water. They readily react with water, oxygen, and other substances.
From the information provided, Jarvis has arranged the elements correctly in order of reactivity from least to most reactive: Helium (He), Carbon (C), Magnesium (Mg), Potassium (K). Therefore, Jarvis's arrangement is correct.
To confirm this, you can also refer to the periodic table or consult a reliable chemistry source to ensure that the order of reactivity for these elements is accurate.