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number of protonas,electrons and neutrons present in the chemical species A,B,C and D is given in the table . answer the questions
elements protons electrons neutrons
A 3 3 4
B 9 9 10
C 8 8 8
D 8 8 10
THIS IS THE TABLE ANSWER THE QUESTIONS BELOW
A)what is the mass number of A nad atomic number of B
B)write the electronic configuration of D?
C)which 2 elements are isotopes?
d)what is the valency of C?
Answers
Answer:
a)The atomic number of a neutral atom is equal to the number of protons and the number of electrons of the atom. The atomic weight meanwhile is equal to the sum of the number of protons and number of neutrons. In this case, the atomic number of the atom is 3 and the atomic mass is 7. Hence the element is Lithium, a meta
Name Fluorine
Number of Protons 9
Number of Neutrons 10
Number of Electrons 9
b)
c)Carbon-14. A naturally occurring radioactive isotope of carbon having six protons and eight neutrons in the nucleus. ...
Iodine-131. It is an isotope because it contains a different number of neutrons from the element iodine. ...
Tritium.
d)Oxygen is the 8th element in the periodic table. This means that oxygen has 8 protons and 8 electrons
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Answer:
A; proton number is 3 and electron number is3 but neutron number is 4
B:proton 7, electron 7 and neutron is 10
D:proton is 8 and electron is 8 neutron is 10
Explanation: