Composition of the nuclei of two atomic species A and B are given below: A B Protons 11 17 Neutron 12 18 (a)

Question

Composition of the nuclei of two atomic species A and B are given below:
A B
Protons 11 17
Neutron 12 18

(a) State the mass numbers of A and B
(b) What is the charge on the ions formed by atoms A and B?
(c) Write the formula when A reacts with B.

in progress 0
Hải Đăng 4 years 2021-07-30T09:01:42+00:00 1 Answers 22 views 0

Answers ( )

  1. Adela
    0
    2021-07-30T09:02:46+00:00
    Reply

    Explanation:

    (a) mass number = atomic number + number of neutrons

    (the atomic number is the number of protons of an element)

    mass number of A = 11 + 12 = 23

    mass number of B = 17 + 18 = 35

    (b) +1 and -1, respectively

    (c) A+ + B- → AB (the first plus sign and the minus sign are superscripts)

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )