1. all elements are made of small particles called atoms
2. atoms of one element are identical in their properties, different atoms from different elements differ in properties
3. chemical reactions consist of atoms rearranging in whole number ratios
4. atoms can not be subdivided, created, or destroyed
Hey there!
In hyphenated notation, we have the name of the element, a hyphen, then a number that is the sum of protons and neutrons.
The first isotope has 3 protons and 3 neutrons, so the sum is 6. Its name is lithium-6.
The second isotope has 3 protons and 4 neutrons, so the sum is 7. Its name is lithium-7.
Hope this helps!
A true most cases are parental abuse
B.
Spring tides occur during a new/full moon. The sun, moon and earth form a straight line during these phases.
If you use its electronic structure the last number should be a five so something like (2,5), (2,8,5) or (2,8,8,5) etc.
The elements therefore with 5 as it's final number and 5 on the outer orbit are N, P, As, Sb, Bi, Uup. Therefore with the answers given to you the answer is most likely 4) Phosphorus. <span />
