Question

Jyothi Nivas School, Srirangapatna
Second Unit Test – 2020 (Open Book)
ss: - IX
Subject: Chemistry
Marks: - 25
15
Fill in the blanks:-
1. The atoms of different elements with same masses but different atomic number are
called as___
2. The atoms of non metal hav______
electrons in their outermost shell.
3. A___
bond is formed by sharing one pair of electron
4. In Newland's law of octave__________
element have similar properties with first element
5. The three elements are put together in one group to form a triad called as__&​

Answer 1

Answer:

here are ur answers

Explanation:

1. Isotopes atoms

2. boron

3. ionic

4. 8

5. not know

i am not sure about 4th and 5th answer..

thnq hve a nice day