10 POINTS

Elaine, Nica, Christine and Natalia

1 POINTS

Question: What is the Charge of a Proton and what’s it’s other name in radiation

Answer: Positive Charge and Alpha Particle

1 POINTS

Question: What’s an electron called and what’s it’s other name in radiation

Answer: Negative charge and it’s called a beta particle

Fontaine Chu, Krystal Xie anRyan Yu POINTS

was a New Zealand physicist

discovered alpha and beta rays

set laws of radioactive decay, and identified alpha particles as helium nuclei

3 POINTS

Question: What is a Cathode Ray Tube and which scientists used it?

Answer:A tube with low pressure gas and two electrodes which conducts electrical discharge.
Used by William Crookes and J.J Thomson

Parker POINTS

Repetition in chemical and physical properties of the elements is a fundamental pattern in nature / The pattern is periodicity and forms the basis of the periodic law / The properties of the elements recur periodically when the elements are arranged in increasing order by their atomic numbers

Parker POINTS

Home: Russia
Awards: Copley Medal, Demidov Prize, Element 101 – Mendelevium is named after him
Notable students: Konovalov, Gemilian
Quote: In a dream I saw a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper.

Parker POINTS

A beam of high penetrating power is produced by bombarding beryllium with alpha particles / The beam’s particles have the same mass as protons and are not affected by electric or magnetic fields / Called Neutrons because they have no charge, and are neutral / They are inside and play an important role in maintaining the nucleus.