(a) What is the atomic number of Y?
(b) What is the mass number of X?
(c) What is the relation between X and Y?
(d) Which element/elements do they represent?
(e) Write the electronic configuration of X.
(f) Write the cation/anion formed by the element.
(a) What is the atomic number of Y? (b) What is the mass number of X? (c) What is the relation between X and Y? (d) Which element/elements do they represent? (e) Write the electronic configuration of X. (f) Write the cation/anion formed by the element.
A 4 4 3
B 8 9 9
C 18 22 18
D 17 20 17
E 17 18 17
1) Find the cations
2) Find the anions
3) Find a pair of isotope
4) An atom of noble gas
Answer with reasons
(a) What is the atomic number of Y?
(b) What is the mass number of X?
(c) What is the relation between X and Y?
(d) Which element/elements do they represent?
(e) Write the electronic configuration of X.
(f) Write the cation/anion formed by the element.
(a) What is the atomic number of Y?
(b) What is the mass number of X?
(c) What is the relation between X and Y?
(d) Which element/elements do they represent?
(e) Write the electronic configuration of X.
(f) Write the cation/anion formed by the element.