3. Identify the element:
(i) Which has atomic number 11.
(ii) Write the electronic configuration of the element.
(iii) Write mass number.
(iv) Number of valence electrons
(v) Write the classification of the element.
(i) Which has atomic number 11.
(ii) Write the electronic configuration of the element.
(iii) Write mass number.
(iv) Number of valence electrons
(v) Write the classification of the element.
Answers & Comments
Verified answer
Answer:
'A' - atomic number = 11
Electronic configuration = K L M
2,8,1
∴ Period number = No. of shells = 3
Group number = No of valence electrons
Explanation:
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Answer:
i Na
i2,8,1
iii 23
iv 1 valence e
v . metal
Explanation:
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