What do the bubbles indicate? <span>chemical reaction with HCl, release of H2(g)
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Where the substances are located in relation to one another on the periodic table and the activity series? <span>A is above B on the periodic table but B is above A in the activity series.
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The name of the family the substances could be in ? <span>alkaline earth, alkali metals. Either group 1 or group 2.
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<span>What substance will have a larger atomic radius? B</span>
What substance will have a larger ionization energy? A
Answer:
It depends what other values you have. Can you give more info? If they give density then you can solve for m.
Answer: b) positron
Explanation:
The antiparticle or the antimatter counterpart of the electron is called positron.
The positron has an electric charge of +1 e and same mass as an electron. When a positron collides with an electron, annihilation takes place.
Below is an attachnent that further explains this
a) 6 electrons - because atomic number is the same as the electron number
b) 4 - because 6-2=4
c) Covalent bonds - it needs 4 more electrons for a full outer shell.
