How many electrons are in the valence shell of an atom with 17 protons?

Group 17 has 7 valence electrons.

How many electrons does an atom of 17 protons have?

17 electrons Chlorine has an atomic number of 17 and an atomic mass of 35.45, meaning that an atom of chlorine consists of 17 protons, 17 electrons, and 18 neutrons.

How many valence electrons are there in an atom an atomic number of 17?

7 electrons Electrons in the outer shells that are not filled are called valence electrons. The atomic number of chlorine is 17. Hence it has got 7 electrons in its outermost shell.

How many valence electrons does atom X have?

three Valence Electrons An atom X has three Valence Electrons and atom Y has 6 Valence Electrons.

How do you find the number of electrons to fill the outer shell?

The number of valence electrons needed to fill its shell can be determined by inputting the shell level, n, squaring it, and by multiplying by 2.

Which group has 7 electrons in the outermost shell?

UPLOAD PHOTO AND GET THE ANSWER NOW! Solution : Three elements which have seven valence electrons in their outermost shell are fluorine, chlorine, and bromine (or any other group 17 elements / halogens).

What element has a proton of 17?

chlorine atom Untitled Document. Although every atom has equal numbers of protons and electrons, the number of neutrons can vary. For example, every chlorine atom has 17 electrons and 17 protons; its atomic number is 17.

Which element has the proton number 17?

chlorine Tim Harrison was telling the tale of Element number 17, and that's chlorine.

How many valence electrons are for the elements in the group 17 of periodic table?

7 valence electrons Group 17 element has 7 valence electrons so this group has outer configuration as ns2p5.

How many valence electrons does group 17 have on the periodic table?

seven valence electrons Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups.

How do you find the outermost electrons?

For neutral atoms, the number of valence electrons is equal to the atom's main group number. The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

How do you know how many electrons are in the outermost shell?

So we can use the column or group of an element to determine the number of electrons in its outermost shell, sometimes referred to as valence electrons. Elements from the fourth column of the periodic table, like carbon, have four electrons in their outermost electron shell or four valence electrons.

How do you calculate energy level in outermost?

9:3911:09How to find the number of electrons in each electron shell or energy levelYouTube

What is outermost shell?

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bond with other atoms. This outermost shell is known as the valence shell & the electrons found in it are called valence electrons.

How many electrons does outer shell have?

The outermost shell in an atom cannot have more than eight electrons even if it has a capacity to take up more electrons. This is also called the octet rule. Protons and neutrons have nearly same mass(one unit).

What has 17 protons and electrons?

chlorine atom For example, every chlorine atom has 17 electrons and 17 protons; its atomic number is 17.

Which of the following elements has 17 electrons and 17 protons?

The atomic number of chlorine is 17. So, it has 17 electrons and 17 protons.

What is the valency of Group 17?

7 electrons Electronic Configuration of Group 17 Elements: As can be seen from the electronic configuration, the outermost shell of the halogen atoms have 7 electrons; thus, their valency is 7.

How many electrons can Group 17 elements accept?

Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups….Elements.

Halogen	Configuration
Astatine	(Xe)4f14 5d10 6s2 6p5

•Aug 21, 2020

How many electrons does Group 17 have?

7 valence electrons Group 17 has 7 valence electrons.

How many electrons are in the outermost energy level?

eight electrons Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule.

What is the outermost electron?

Valence electrons Valence electrons are the electrons in the outermost shell, or energy level, of an atom.

How many electrons are in outermost shell?

eight electrons Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be stable with an octet even though their valence shell is the 3n shell, which can hold up to 18 electrons.

How do you find the outermost shell of an atom?

-So we see that there are many shells of an atom. The shell farthest from the atom is called the valence shell. It is the outermost shell of the atom and the electrons present in this shell are called the valence electrons. -So, valency is the number of outermost electrons of the atom.

How do you find the outermost shell?

Since each row of the periodic table represents an electron shell, elements on the left-hand side of the periodic table, like lithium, will have one electron in their outermost electron shell, whereas elements all the way on the right-hand side of the periodic table, like neon, will have full outer electron shells.

What atom has 17 protons and 18 neutrons and 17 electrons?

A chlorine atom has 17 protons, 18 neutrons, and 17 electrons.

What is group 17 on the periodic table called?

halogen halogen, any of the six nonmetallic elements that constitute Group 17 (Group VIIa) of the periodic table. The halogen elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).

Why does group 17 have a valency 1?

This is because group 1 elements have 1 electron in their valance shell which they donate or share with another atom to become a positive ion with charge +1. In the same way, group 17 atoms (or halogens) need only one more electron to acquire a stable configuration and to become a negative ion with charge -1.

What do group 17 elements form?

Halogens (group 17 elements) react with most metals to form an ionic metal halide, and the reactions are more vigorous with fluorine and least vigorous with iodine. The halogens also react with water.