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What is TRUE about the elements fluorine chlorine and iodine?
Fluorine, chlorine, and iodine are all halogen elements located in Group 17 of the periodic table. They are all nonmetals and exhibit similar chemical properties due to their shared group. As you move down the group from fluorine to iodine, the reactivity of the elements generally decreases.
All the atoms of an element are the same true or false?
A piece of pure Iron contains only one type of atom (Iron atoms) but there is more than one atom in it.
Is it true or false that characteristic properties of elements do not depend on the amount of material present in a sample of the element?
True. Characteristic properties of elements, such as melting point, boiling point, density, and chemical reactivity, do not depend on the amount of material present in a sample of the element. These properties are unique to each element and remain constant regardless of the quantity of the substance.
What is true of iodine and radioactive iodine a-Both have the same atomic number b-Both have the same number of electrons c-Both have the same number of neutrons d-None of the ab?
both a and b are true for iodine and radioactive iodine isotope
How true or false A northerly wind comes from the south and moves toward the north?
False. A northerly wind comes from the north and moves towards the south.
True or False The element essential for the production of thyroid hormones is magnesium?
Iodine
True or false a chemical is always the same thing as an element?
FALSE
True or false the atom is the simplest unit of an element?
true
Is 0 an element of I the set of integers true or false?
It is true.
True or false the graphite in your pencil and the dimand in a dimand ring are from the same element?
True - the element is carbon
Helium is the first element on the periodic table and the most stable element in the universe true of false?
Yes, it is true.
Is The collection of natural numbers is an example of an element true or false?
false -apex life
True or false that hydrogen is the least common element in the universe?
False. Hydrogen is the most abundant element in the universe, constituting about 75% of its elemental mass.
True or false water is an example of a chemical element?
False. Water is a molecule made of 2 parts hydrogen one part oxygen. NOT AN ELEMENT.
True or false The first element in a compound is positive and the second one is negative?
true
Is this true or false au is the symbol for gold on the periodie table of element?
I believe it's true.
True or false the color of an element on the periodic table indicates its phase at room teperature?
true
