Any of the other alkali metals not mentioned (I.e. rubidium, caesium or francium). They are all group one metals meaning that they contain one valence (outer shell) electron so they will have similar properties. Francium is the most reactive alkali metal while lithium is the least reactive (if you’d like me to explain that let me know :) )
Riding your bike, you can accelerate at a rate of 2m/s^2. If you start from rest, how long will it take to reach a speed of 20m/s?
Answer: I think you have to subtract the distances
Explanation:
The statement which is true about the three sub atomic particles is
X is a neutron,Y is a protons and z is an electron
<u><em>Explanation</em></u>
- Atom has three sub atomic particles,that is neutrons,protons and electrons.
- Neutrons have no electric charge,protons are positively charged while electrons are negatively charged.
- Both neutrons and proton are located in the nucleus while electrons are located outside the nucleus.
- since electrons are located outside the nucleus they orbit around the nucleus.
