Question

Question 1.
(a) Fill in the blanks with the correct choice given in brackets.
[5]
(i) The atomic number of an element is the number of
..... and electrons
present in the nucleus of an atom.
[protons/negative change]
(ii) As one moves down a group, size of atoms of successive elements.
[increases/decreases]
(iii) When zinc reacts with dilute sulphuric acid
...... gas is evolved.
[carbon dioxide/hydrogen]
(iv) Anode rays are made up of
Charged particles. (positively/negatively]
(v) Elements which have 4 or 5 or 6 or 7 electrons in their outermost shell are known
[metals/non-metals]​

Answer 1

Answer:

1 proton

3 hydrogen

mark as brainliest please

Answer 2

Answer:

1) protons

2)increases

3) hydrogen

4) negatively

5) metals