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A is a pure substance that contains two or more electrons?
An element is a pure substance that contains two or more electrons. There are many different elements known to man.
How many electrons are there in the helium atom?
7 Helium contains two electrons in all naturally occurring states.
How many electrons are in level one of helium?
Helium, as the second element in the periodic table, only possesses two electrons. As such, they only encompass a single level.
What element is a noble gas that does not have eight electrons in its outer shell?
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
What contains only 1s2 orbit?
Helium's electron structure is 1s2, meaning two electrons in the 1s orbital
What element contains two electrons in its third energy level?
mg
A is a pure substance that contains two or more electrons?
An element is a pure substance that contains two or more electrons. There are many different elements known to man.
What element contains two electrons in its fifth energy level?
Strontium (Sr)
How many electrons are there in the helium atom?
7 Helium contains two electrons in all naturally occurring states.
Which element has a mass number of 40 and only has 2 valance electrons?
The element that has a mass number of and two valence electrons is an isotope of calcium.
How many electrons are in level one of helium?
Helium, as the second element in the periodic table, only possesses two electrons. As such, they only encompass a single level.
What element could have two electrons in their outermost level and be full?
Helium has only 2 electrons and its energy level is full.
Describe the correct arrangement of electrons in an atom that contains twelve electrons.?
The atomic number is equivalent to an atom's total number of electrons. The element with 12 electrons in magnesium. It has two valence electrons and in group 2.
What is the number of electrons that can be found in the 1st shell of neon?
The first shell of Neon, known as the K shell, can only hold two electrons. The first shell of any chemical element can only hold two electrons.
How many electrons are in the first shell of beryllium?
Beryllium like every other element excluding hydrogen has 2 electrons in its first shell.
What element is a noble gas that does not have eight electrons in its outer shell?
Helium is the element in the noble geses family that does not have an octet. Helium is the element in the noble geses family that does not have an octet.
On the periodic table which is the simplest and most stable element because it contains 2 protons and two electrons?
Helium (He) Atomic Number: 2
