It would be potassium (K). Its electron configuration is 1s2 2s2 2p6 3s2 3p6 4s1.
That is not true. The first element in a period may be active or inactive, depending on the specific electron configuration of the element. For example, the first element in period 1, hydrogen, is not considered an active element.
This element is the metal strontium (Sr).
Gallium.
Alkaline earth metals are in the second group. Be is the first metal of them.
No, the first element, hydrogen, is not an alkaline earth metal. The first of those is Beryllium.
Metal is not an element. It is a term used to classify an element, but it is not an element.
Hydrogen is not considered a metal. It is a non-metal and is the first element on the periodic table. In its pure form, hydrogen exists as a diatomic gas and is the most abundant element in the universe.
The first element in the halogen group is fluorine. It is a highly reactive non-metal with a pale yellow hue.
Copper metal is an element.
a metal element
Carbon is an element. It is a non metal
hydrogen (and helium)