Gravitational Forces Act Between Objects in Proportion to Their

Q22: The mass number of an atom of

Q24: 200 pm is the same as Å.<br>A)

Q25: Silver has two naturally occurring isotopes with

Q26: Which one of the following is not

Q28: Potassium is a _ and chlorine is

Q29: Lithium is a and magnesium is a

Q30: The element X has three naturally occurring

Q31: Oxygen is a _ and nitrogen is

Q32: Which species has 54 electrons?<br>A)<img src="https://d2lvgg3v3hfg70.cloudfront.net/TB34225555/.jpg" alt="Which

Q64: The formula for chromium (II)iodide is CrI₂.