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The elements in Group 2 of the Periodic Table are:
Beryllium
Magnesium
Calcium
Strontium
Barium
Radium
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∙ 12y ago
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How do you identify a compound or an element?
Elements are pretty much defined by the number of protons in the nucleus. This number (the atomic number) defines the element. All the different elements have different numbers of protons in their nucleus.
What is the number of neutrons for a specific element equal to?
The average number of neutrons that a specific element has is equivilent to the element's atomic mass minus the that elements atomic number. For example Helium has 2 neutrons because its atomic mass (4) minus the atomic number (2) is 2.
Why are stars referred to as atomic furnaces?
It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.
What information is given by the noble gas notation Ne 3s2?
The element is magnesium with an atomic number 12.The element belongs to the 3rd period, with two valence electrons in the s orbitals. The element is an example of alkaline earth elements or group 2 elements.
Who is the family for strontium?
Alkaline earth metals
What is the smallest number of elements needed to make a element?
It is 2. Compounds consist of at least 2 elements.
Can 2 different elements have the same number of protons?
No, the number of protons is what determines what element it is
What element is in group 2 and has fewer protons than potassium?
Carbon is the element in the same family as lead with atomic number less than sodium.
How do you identify a compound or an element?
Elements are pretty much defined by the number of protons in the nucleus. This number (the atomic number) defines the element. All the different elements have different numbers of protons in their nucleus.
What is the number of neutrons for a specific element equal to?
The average number of neutrons that a specific element has is equivilent to the element's atomic mass minus the that elements atomic number. For example Helium has 2 neutrons because its atomic mass (4) minus the atomic number (2) is 2.
What does an element atomic number tell about the elements?
It tells you (1) how many protons are in the element, and (2) what the element is since all atoms of an element will have the same number of protons.It's D. The number of protons in its atoms.It tells how many protons/electrons that element has.
What element has two 2s electrons?
Actually the atomic number tells you how many protons there are. And there are 6 elements with 2 electrons. You can find out that out by looking at a periodic table and looking at family 2. Im guessing you won't be able to find the element your looking for unless you know the number of nuetrons or even better the number of protons.
How can you get the number of subsets?
Let's say the set S has n elements. An element can be either in the subset or not in the subset. So There are two ways for one element. Therefore the number of subsets of a set of n elements is 2 multiplied n times which is 2^n
How do you figure the number of protons in a atom?
The number of protons in an element determines which element that atom is. The number of protons is given by the atomic number of that element. The element hydrogen is 1, helium is 2, lithium is 3, and so on.Any list of elements set down by atomic number will tell an investigator how many protons are in the nucleus of any given element on the list. In the periodic table of elements, by starting in the upper right corner and reading all the way across, and going down line by line, we can also find the number of protons in the nucleus of any given element. This is because in the periodic table of elements, there is still an order in which the elements are set down by atomic number starting with 1 and going to 2, 3, 4, and on up through the rest of the elements.
What are elements with identical number for protons and different number of neutrons called?
The answer you are looking for is "isotopes" HOWEVER, please note you CAN NOT HAVE 2 elements with the same number of PROTONS. This is because the number of protons DEFINES an element. Isotopes are the SAME element but with differing numbers of neutrons.
Why are stars referred to as atomic furnaces?
It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.It is in the stars that the heavier elements (basically, anything after element #2, helium) are made.
Can 2 different elements have the same neutrons and protons?
Each chemical element has a different number of protons; the number of neutrons can be similar.
