Podcast
Questions and Answers
Which element of group 1 is known for its reactivity with water?
Which element of group 1 is known for its reactivity with water?
- Rubidium
- Lithium
- Sodium
- Potassium (correct)
What is the atomic number of the element found in the 3rd period and group 2 of the periodic table?
What is the atomic number of the element found in the 3rd period and group 2 of the periodic table?
- 20 (correct)
- 12
- 3
- 4
Which subatomic particle is responsible for the identity of an element?
Which subatomic particle is responsible for the identity of an element?
- Neutron
- Electron
- Proton (correct)
- Isotope
Flashcards are hidden until you start studying
Study Notes
Periodic Table and Elements
- Alkali metals in Group 1 are known for their high reactivity with water, with the most reactive being Caesium.
- The element in the 3rd period and group 2 of the periodic table is Magnesium, which has an atomic number of 12.
- The atomic number of an element is determined by the number of protons in the nucleus, which is responsible for the identity of an element.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.