# What is noticeable about all of the ionic charges in Group 1 2 15 16 and 17?

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The ionic charges of group 1 and 2 metals are +1 and +2 respectively. Group 15 & 16 the simple mono-atomic ions are -3 and -2. Group 17 ions are -1. This can be explained by the following elemnts in groups 1 and 2 lose 1 or 2 electrons respectively to achieve a noble gas configuration whereas groups 15, 16 and 17 gain electrons (3,2 1 respectively)
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# I took days 15 16 and 17 instead of days 1 2 and 3.Then on days 15 16 and 17 I took 1 2 and 3.Is this bad?

Answer . \nUse condom for until your next period arrives. It is the best you can do.

# How do the outer-shell electron configurations for ions of elements from groups 1 and 2 and 15 and 16 and 17 compare with those of the noble gases?

Answer . Elements in Group 1 have 1 more electron than the noble gas in the row above it. Elements in Group 2 have 2 more electrons than the noble gas in the row above it

# What is the charge for all elements in group 1?

all the elements of group 1 have only one valence electrn so they donate one electron and are always 1 +

# What is the charge for all elements in group 2?

The charge for all elements in Group 2A is +2.

# Explain Why Groups 1 and 2 form many compounds with Groups 16 and 17?

Their valance electrons form an octet. Each compound wants to have 8 valence electrons (which forms an octet). Groups 1 and 2 have 1 and 2 valence electrons respectively. 1

# How many valance electrons do atoms in group 1 group 2 and groups 15 to 17 have?

group1: +1 group2: +2 group15: -3 group16: -2 group17: -1

2-

-2

# Why groups 1 and 2 form many compounds with groups 16 and 17?

Group 1 and 2 elements have 1 and 2 valence electrons respectively. Removal of these electrons will result in stable noble gas electronic configuration. Group 17 and 16 elemen

It's -3 =P

# How many valence electrons do atoms in Group 1 2 15 16 and 17 have?

Group 1 has 1, group 2 has 2, group 15 has 5, group 16 has 6 and group 17 has 7 valence electrons.

# Why do groups 1 and 2 form many bonds with groups 16 and 17 on the periodic table?

group 1 and 2 are electorpositive elements(metals) so they readilly reacts with group 16 and 17 elements which are electronegative(non-metals).
In Chemistry

# Why do the elements in the group 1 and 2 react with group 17?

The group 1 and 2 elements have much lower electronegativity value than group 17 elements and therefore lose electrons to the group 17 elements. The group 17 elements require
In Elements and Compounds

# How many valance electrons do atoms in group 1 2 15 16 n 17 have?

Periodic Table Group Number*: Number of Valence Electrons for Each Atom . 1 : 1 2 : 2 15 : 5 16 : 6 17 : 7 ___________________ *In a wide form periodic table.
In Atoms and Atomic Structure

# What type of ions do groups 1 2 15 16 and 17 form?

The most common type of ions are. Monopositive cation for group 1 elements, Dipositive cation for group 2 elements, Trinegative anions for group 15 elements, Dinegative anion
In Chemistry

# What is the charge ionic of Group 5a?

Group 5A, which includes the common elements nitrogen and phosphorus, has a -3 charge in an ionic bonding scenario, which means they will gain three electrons.
In Math and Arithmetic

c) 17