Atoms with the same number of protons, but different numbers of neutrons are isotopes of the same element.
Answer:
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There is no problem with the model formed by atoms as solid spheres for macroscopic measurements because the atoms are extremely small.
<h3>What is Dalton's atomic model?</h3>
This was formulated in 1808 and states that atoms with spheres cannot be divided. It also states that solids are formed by contact between the spheres and chemical compounds from joining of atoms of two or more elements.
The size of the atoms in the form of sphere is very small as it is known that it is of the order of 10⁻⁹ m, therefore, having a macroscopic crystal more than 10⁻⁶ m in length which is why the model of the atom as solid spheres for macroscopic measurements has no problem.
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Answer:
Explanation:
This question appear incomplete. However, chemical substances that conduct electricity when dissolved in water are elctrovalent/ionic compounds. These compounds are usually made up of elements in group 1 and group 7 (for example NaCl, NaI and LiF) but could also be made up of group 2, group 3 and group 6 [for example Mg(OH)₂ and Al(OH)₃]. Thus, they can be loosely said to be found in those groups in the S and P blocks of the periodic table.
NOTE:
Sodium (Na) is found in group 1 (S-block)
Lithium (Li) is found in group 1 (S-block)
Chlorine (Cl) is found in group 7 (P-block)
Iodine (I) is found in group 7 (P-block)
Flourine (F) is found in group 7 (P-block)
Magnesium (Mg) is found in group 2 (S-block)
Aluminium (Al) is found in group 3 (S-block)
Oxygen (O) is found in group 6 (P-block)
Hydrogen (H) is found in group 1 (S-block)
