Ravi, a science teacher explained the students about the representation of an element 4X9 jr.albert Einstein, a student asked the teacher following questions
a) what does the number 9 indicate?
b) what does the number 4 indicate?
C) what is the element X
d) How do you find the no.of protons
e) How do you find the no.of electrons
Answers
Answer
AnswerAn atom of an element (X) has its K, L and M shells filled with some electrons. It reacts with sodium metal to from a compound NaX. The number of electrons in the M shell of the atom (X) will be Seven.
AnswerAn atom of an element (X) has its K, L and M shells filled with some electrons. It reacts with sodium metal to from a compound NaX. The number of electrons in the M shell of the atom (X) will be Seven.In NaX, Na forms Na
AnswerAn atom of an element (X) has its K, L and M shells filled with some electrons. It reacts with sodium metal to from a compound NaX. The number of electrons in the M shell of the atom (X) will be Seven.In NaX, Na forms Na +
AnswerAn atom of an element (X) has its K, L and M shells filled with some electrons. It reacts with sodium metal to from a compound NaX. The number of electrons in the M shell of the atom (X) will be Seven.In NaX, Na forms Na + and X forms negtive ions. Thus, X gains one electron to form uni negative ion in which octet will be completed. Hence, X has 7 valence electrons
AnswerAn atom of an element (X) has its K, L and M shells filled with some electrons. It reacts with sodium metal to from a compound NaX. The number of electrons in the M shell of the atom (X) will be Seven.In NaX, Na forms Na + and X forms negtive ions. Thus, X gains one electron to form uni negative ion in which octet will be completed. Hence, X has 7 valence electronsHence, the option (B) is correct answer.
Figure 9 Indicates Mass Number.
Explanation:
Answer a.) The Figure 9 Indicates Mass Number.
Answer b.) Atomic Number is indicated by Figure 4.
Answer c.) Number of Protons in Atom X are 4.
Answer d.) 5 Number of Neutrons are present in Atom X.
Answer e.) 4 Number of electrons are present in Atom X.
Answer f.) 2 electrons are there in the outermost shell of an atom of element X.
Answer g.) X^2^+ is the symbol of ion being formed by an atom of element X.