2 valence electrons
Explanation:
Most transition metals have 2 valence electrons. Valence electrons are the sum total of all the electrons in the highest energy level (principal quantum number n). Most transition metals have an electron configuration that is ns2(n−1)d , so those ns2 electrons are the valence electrons.
Answer:
Large temperature and air pressure decrease.
Temperature and air pressure increase.
Explanation:
The answer to your question is full
The material needed to stop a beta particle is c. thin pieces of wood.
