2(a) define the term isotope.
mark point 1: same element / same number of protons
mark point 2: different number of neutrons

2(b) complete the missing values in the table.
2(b)(i) number of protons in $^{35}\text{cl}$
2(b)(ii) number of neutrons in $^{35}\text{cl}$
2(b)(iii) electrons in neutral $^{37}\text{cl}$ atom

Question

2(a) define the term isotope.
mark point 1: same element / same number of protons
mark point 2: different number of neutrons

2(b) complete the missing values in the table.
2(b)(i) number of protons in $^{35}\text{cl}$
2(b)(ii) number of neutrons in $^{35}\text{cl}$
2(b)(iii) electrons in neutral $^{37}\text{cl}$ atom

Accepted Answer

{ "quality": "clear", "question_count": 5, "skills_matched": [ "step_cot", "explain_then_answer", "quick" ], "needs_drawing": false, "concepts_used": [], "new_concepts": [ "Isotopes", "Atomic Structure", "Subatomic Particles" ], "current_concepts": [ "Isotopes", "Atomic Structure", "Subatomic Particles" ] } ## Define isotope components $$ \begin{aligned} &\text{Mark point 1: Atoms of the same element with the same number of protons} \ &\text{Mark point 2: Atoms with a different number of neutrons} \end{aligned} $$ ## Calculate subatomic particles for chlorine-35 $$ \begin{aligned} &\text{Atomic number of Chlorine } (Z) = 17 \ &\text{Protons in } {}^{35}\text{Cl} = 17 \ &\text{Neutrons in } {}^{35}\text{Cl} = A - Z = 35 - 17 = 18 \end{aligned} $$ ## Determine electrons in neutral chlorine-37 $$ \begin{aligned} &\text{Electrons in neutral atom} = \text{Protons} = Z \ &\text{Electrons in } {}^{37}\text{Cl} = 17 \end{aligned} $$ ## Question 2(a) Mark point 1: same element / same number of protons Mark point 2: different number of neutrons ## Question 2(b)(i) 17 ## Question 2(b)(ii) 18 ## Question 2(b)(iii) 17 { "subject": "Natural Science", "question_type": "Multi-part", "knowledge_point": [ "Natural Science", "Chemistry", "Atomic Structure and Isotopes" ] }

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QUESTION IMAGE

Question

Explanation:

Define isotope components

Calculate subatomic particles for chlorine-35

Determine electrons in neutral chlorine-37

Answer:

Question 2(a)

Question 2(b)(i)

Question 2(b)(ii)

Question 2(b)(iii)