Chemistry, 04.07.2019 19:30 chozz2783

Match the element with its number of valence electrons. match term definition nitrogen a) 5 silicon b) 4 oxygen c) 2 magnesium d) 6

Answers: 1

Show answers

Answers

Answer from: Jasten

Valence electrons are that electrons that are present in the atom, outside the nucleus in orbits. The list of atoms with correct number of valance electrons is as follows;

A. Nitrogen: 5

B. Silicon: 4

C. Oxygen: 6

D. Magnesium: 2

Answer from: StupidFatChipmunk

Answer :

Element Valence electrons

Nitrogen 5

Silicon 4

Oxygen 6

Magnesium 2

Explanation :

Valence electrons : Valence electrons are the electrons which is present on the outermost shell of the electron.

The given element is nitrogen that belongs to group 15 and the atomic number 7.

The number of electrons present on nitrogen element are 7.

The electronic configuration of nitrogen element is,

1s^22s^22p^3

The number of valence electrons present on nitrogen element are, 5.

The given element is silicon that belongs to group 14 and the atomic number 14.

The number of electrons present on silicon element are 14.

The electronic configuration of silicon element is,

1s^22s^22p^63s^23p^2

The number of valence electrons present on silicon element are, 4.

The given element is oxygen that belongs to group 16 and the atomic number 8.

The number of electrons present on oxygen element are 8.

The electronic configuration of oxygen element is,

1s^22s^22p^4

The number of valence electrons present on oxygen element are, 6.

The given element is magnesium that belongs to group 2 and the atomic number 12.

The number of electrons present on magnesium element are 12.

The electronic configuration of magnesium element is,

1s^22s^22p^63s^2

The number of valence electrons present on magnesium element are, 2.

Answer from: Quest

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

Answer from: Quest

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.

Another question on Chemistry

Chemistry, 22.06.2019 05:20

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Answers: 1

Answer

Chemistry, 22.06.2019 09:30

Which formula can be used to calculate the molar mass of hydrogen peroxide

Answers: 1

Answer

Chemistry, 22.06.2019 12:30

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Answers: 1

Answer

Chemistry, 22.06.2019 15:10

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?

Answers: 2

Answer

You know the right answer?

Match the element with its number of valence electrons. match term definition nitrogen a) 5 silicon...

Questions