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Sagot :
To determine the identity of element [tex]\( Y \)[/tex], we need to follow these steps:
1. Determine the Atomic Number:
- The mass number of element [tex]\( Y \)[/tex] is given as 11.
- The number of neutrons in a single atom is given as 6.
- The atomic number can be calculated by subtracting the number of neutrons from the mass number:
[tex]\[ \text{Atomic Number} = \text{Mass Number} - \text{Number of Neutrons} \][/tex]
Substituting the given values:
[tex]\[ \text{Atomic Number} = 11 - 6 = 5 \][/tex]
2. Identify the Element Based on the Atomic Number:
- The atomic number uniquely identifies an element on the periodic table.
- An atomic number of 5 corresponds to the element Boron, which is denoted by the symbol [tex]\( \text{B} \)[/tex].
Thus, the identity of element [tex]\( Y \)[/tex] is Boron ([tex]\(\text{B}\)[/tex]). Therefore, the correct answer is:
[tex]\[ \boxed{\text{B}} \][/tex]
1. Determine the Atomic Number:
- The mass number of element [tex]\( Y \)[/tex] is given as 11.
- The number of neutrons in a single atom is given as 6.
- The atomic number can be calculated by subtracting the number of neutrons from the mass number:
[tex]\[ \text{Atomic Number} = \text{Mass Number} - \text{Number of Neutrons} \][/tex]
Substituting the given values:
[tex]\[ \text{Atomic Number} = 11 - 6 = 5 \][/tex]
2. Identify the Element Based on the Atomic Number:
- The atomic number uniquely identifies an element on the periodic table.
- An atomic number of 5 corresponds to the element Boron, which is denoted by the symbol [tex]\( \text{B} \)[/tex].
Thus, the identity of element [tex]\( Y \)[/tex] is Boron ([tex]\(\text{B}\)[/tex]). Therefore, the correct answer is:
[tex]\[ \boxed{\text{B}} \][/tex]
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