the element with atomic number

name the element wsith the atomic number z= 15 and the atomic mass number 31.How many electrons does the neutral of this lement
1. 1 answer
2. asked by CHEMISTRY
3. 769 views
Question 2 (2 points)The atomic number determines the identity of an element. The atomic number is the number of protons in the
1. 1 answer
2. 120 views
Use the periodic table to identify each element below as either a metal, nonmetal, or metalloid.Radium (Ra- Atomic number
1. 1 answer
2. 45 views
1.what is meant by atomic number of an element?2.the mass number of an element is 18,it contains 7 electrons.what is the number
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2. asked by pooja
3. 1,780 views
An element has 8 protons and 8 neutrons in its nucleus and 8 electrons revolving around the nucleus. What is the atomic number
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2. 42 views
18. Explain how the atomic number of an element identifies the element.19. How can atomic number and mass number be used to find
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2. asked by Rosio
3. 755 views
Why is it impossible for an element to have an atomic number of 110.5? (1 point)The atomic number is the number of protons,
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2. 29 views
Why is it impossible for an element to have an atomic number of 110.5? (1 point)Atoms with atomic numbers greater than 100 are
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2. 40 views
I have to write a bunch of atomic symbol for these isotopes and I don't understand how to I do it.(a) atomic number=53, number
1. 2 answers
2. asked by SC
3. 1,605 views
Moving from the elementwith atomic number 10 to atomic number 11 on the periodic table, there is a change in reactivity. What is
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2. 33 views