A) transports oxygen and carbon dioxide for the respiratory system
Answer:
The correct answer would be - 1. group 2.period 3. less 4. more
Explanation:
elements that have a place with same group contains same number of valence electrons. Thus, they will in general show comparable chemiccal properties.
At the point when we move over a period at that point number of electrons get added to a similar shell. Therefore, there will be no expansion in size of elements.
Additionally, metals are the elements that have a place with group 1, 2 and d-block group are otherwise called metals. Metallic character of elements diminishes when we move left to directly in a periodic table.
As most responsive metals are put on the left half of occasional table.
Since, size of elements increases on descending the groups. Along these lines, a elements can lose its valence electrons due to the less forrce of ttaraction between valence electrons and its neucleus.
With parents you are not alone and with people you love and chances are have free room and board. However privacy and independence may become contraindicative.
Living alone you can kiss goodbye to room and board, however you have a personal and free life.
Living with a room is the half and half, you are somewhat free and private and you don't go it alone while paying room and board.
