argon
For A+ it's Lithium (Li)
In a single replacement reaction, the element that is most active is the one that is higher up on the reactivity series than the element it is trying to replace. The more active element will displace the less active element in the reaction.
The ist group elements Alkali metals are most active elements.
Oxygen is the most active nonmetallic element in group 16, also known as the oxygen group or chalcogens. It readily reacts with many elements to form oxides.
The most active element is lithium (Li) because it readily donates its electron to form stable compounds. Gold (Au), copper (Cu), and calcium (Ca) are less reactive in comparison.
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.
No. Be is active, but is nowhere near the most active element.
No. while magnesium is a very active element is is far from being the most active.
fluorine
fluorine
No, calcium (Ca) is not the most active element. The most active elements are typically found in Group 1 of the periodic table, such as sodium (Na) and potassium (K), which readily react with water and air.
Francium
Fluorine.
Mg
No. Au (gold) is one of the least active elements.
Fluorine is sometimes called the hungry wolf of the periodic table because it is the most reactive element.
In a single replacement reaction, the element that is most active is the one that is higher up on the reactivity series than the element it is trying to replace. The more active element will displace the less active element in the reaction.
Hydrogen...