Alkali Metals. 1  less dense than other metals. 2  one loosely bound valence electron. 3  highly reactive, with reactivity increasing moving down the group. 4  largest atomic radius of elements in their period. 5  low ionization energy. 6  low electronegativity.
At International Experience, we believe that learning about other cultures, languages, and customs is the best way to dispel prejudices and embrace global citizenship.
International Tourism is when people travel globally outside of their region and home country. This means a temporary movement of people from the resident place to another pla â¦ ce for different reasons such as recreational, health,business or some other reason.