Answer:
Number of protons and electrons stay constant
Number of neutrons Differs
Explanation:
Isotopes are the different kinds of same element. Now, as we know quite well that an element can only have one atomic number, this means that the proton number is irrespective of the type of atom
Of the element. The proton number is the identity of the element.
As we know that the atom is electrically neutral, it means the number of electrons will always stay the same too.
Since isotopes are not alike in every respect, the number of neutrons differ. This means they have same atomic numbers but different mass numbers.
Answer: The empirical formula will be=
Explanation:
If percentage are given then we are taking total mass is 100 grams.
So, the mass of each element is equal to the percentage given.
Mass of C= (100-11) = 89 g
Mass of H = 11 g
Step 1 : convert given masses into moles.
Moles of C =
Moles of H =
Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.
For C =
For H =
The ratio of C : H: = 1: 1.5
Convertig them into whole number ratios
The ratio of C : H: = 2: 3
Hence the empirical formula is
The empirical formula will be=
Part (a)
0.0095 + 8.5 x 10⁻³
= 9.5 x 10⁻³ + 8.5 x 10⁻³
= (9.5 + 8.5) x 10⁻³
= 18 x10⁻³
= 1.8 x 10⁻²
Answer: 1.8 x 10⁻²
Part (b)
653 + 5.75 x 10⁻⁸
= 6.53 x 10² + (5.75 x 10⁻¹⁰) x 10²
= (6.53 + 5.75 x 10⁻¹⁰) x 10²
= 6.53 x 10²
Answer: 6.53x 10²
Part (c)
850,000 - 9.0 x 10⁵
= 8.5 x 10⁵ - 9.0 x 10⁵
= - 0.5 x 10⁵
= - 5.0 x 10⁴
Answer: -5.0 x 10⁴
Part (d)
(3.6 x 10⁻⁴) * (3.6 x 10⁶)
= (3.6*3.6)*(10⁻⁴)*(10⁶)
= 12.96 x 10⁶⁻⁴
= 12.96 x 10²
= 1.296 x 10³
Answer: 1.296 x 10³
The Arrhenius acid is a compound that release hydrogen ion (H⁺) when being dissolved in water.
I believe the correct factor concerning ionization energy within a period would be that the valence electrons essentially remain at about the same distance from the atomic nucleus when moving from left to right on the periodic table. This is because the Atomic number increases by a value of 1, and depending whether or not the maximum number of electrons are found within the shell, it may have another shell or not.