Question

4. f is the symbol of fluorine
a) What do f2,2f , 2f2 represent
b)by How many atoms and molecules present in 562?​

Answer 1

Explanation:

Fluorine is the chemical element in the periodic table that has the symbol F and atomic number 9. Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements. In its pure form, it is a poisonous, pale, yellow-green gas, with chemical formula F2.

Answer 2

(a) The $f_{2}$ is the fluorine of gas. and $2f$ is the 2 moles and 2 elements the fluorine.$2f_{2}$ is the 2 atoms and 2 moles 0f fluorine gas.

(b) The atoms and molecules present $562$ is 10 and 5

Explanation:

Fluorine:

• Fluorine is the chemical element in the periodic table that has the symbol F and atomic number 9.
• Atomic fluorine is univalent and is the most chemically reactive and electronegative of all the elements.
• In its pure form, it is a poisonous, pale, yellow-green gas, with chemical formula F2.

$2f$represents 2 atoms or 2 moles of elemental fluorine.

$f_{2}$ represents fluorine gas.

$2f_{2]$ represents 2 atoms or 2 moles of fluorine gas.

(b) The number of atoms and molecules present in are 10 and 5 respectively. Explanation: An atom is the fundamental unit of a substance. Two or more atoms combine together to form a molecule