Question

1. The table lists the atomic mass of some atoms: Atom Р 0 R S Atomic mass 12 24 32 12 Which of the atoms among P, Q, R, S are same?​

Answer 1

Answer:

answer is in photo

Explanation:

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Answer 2

P and q will be in the same group and R and S will be in the same group.

Explanation:

• Element  Р Q R S with  Atomic mass or mass number 12 24 32 12 will have Number of neutrons 6,10,12,18 respectively.
• Atomic number will be P=6,Q=10,R=11,S=17

Electronic configuration of

P=$1s2.2s2,2p2$

Q=$1s2.2s2,2p6$

R=$1s2.2s2,2p6,3s2$

S=$1s2.2s2,2p6,3s2,3p6$

• P and q will be in the same group and R and S will be in the same group.
• Atomic mass on the periodic table is determined by the number of protons and the number of neutrons
• and the mass number is determined by mass number = protons + neutrons.