Question

Jale Archimedes' Principle.
2. Echoes cannot be heard in small rooms. Explain.
3. Question numbers 3(a) - 3(d) are based on
questions that follow.
1
(a)-3(d) are based on the table given below. Study the table and answer the
Element Atomic Number Number of Protons Number of electrons
Х
7
14
6
6
I
14
3. (a) Calculate the number of neutrons of element X.
3. (b) Write the electronic configuration of element Y.
3. (c) Identify the correct statement.
ii. X and Y are isobars.
i. X and Y are isotopes
iii. X is an atomic species whereas Y is ionic.
3. (d) The valency of element X is
iv. None of these
1.2
ii. 3
iii. 4
iv. o​

Answer 1

Answer:

xnxnxnnxnxnxnxjchchchch you xhhxgxg you NC call center!

Answer 2

Answer:

2. It is bcz of less obstacles in the room.. The l makes it all clearly about 17 m, fulfilling requirements of an echo.