Read each description in the first column of the table below. if any chemical element with atomic number of 92 or less matches the description, check yes and enter the chemical symbol of an element that matches. otherwise check no in the second column. descriptiondoes any element match the description?if you checked yes, give the symbol of an element that matches.an element in period 3 and group 2a.yes

In the periodic table, rows are called periods and columns are called groups. The groups are numbered starting from 1 on the leftmost and counts up to 8 to the rightmost. The periods are numbered from top to bottom. Therefore, the element in period 3 and group 2a, is the element in the 3rd row and the 2nd column. That would be Magnesium with an atomic number of 12. Since this is less 92, then the element matches.

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tifanihayyu tifanihayyu · Answer 2 · 2019-09-19T21:48:09+02:00

All element match the description

Further explanation

Read each description in the first column of the table below. if any chemical element with atomic number of 92 or less matches the description, check yes and enter the chemical symbol of an element that matches. Otherwise check no in the second column.

Description, does any element match the description?, If you checked yes, give the symbol of an element that matches.

An element in period 3 and group 2a, yes, Symbol: Be, Atomic number: 4
A nonmetal in Group 6A, yes, Po (84), Te (52), Se (34), S (16), O (8)
An alkali metal with a lower atomic number than germanium (32)., yes, An alkali metal is any of the elements lithium (Li = 3), sodium (Na = 11), potassium (K= 19). An alkali metal is occupied as group IA (1) of the periodic table. They are very reactive, electropositive, monovalent metals forming strongly alkaline hydroxides.
A transition element in Period 4, yes, the period 4 transition metals are scandium (Sc = 21), titanium (Ti = 22), vanadium (V = 23), chromium (Cr = 24), manganese (Mn = 25), iron (Fe = 26), cobalt (Co = 27), nickel (Ni = 28), copper (Cu = 29), and zinc (Zn = 30).

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Learn more about a transition element https://brainly.com/question/7102290
Learn more about the chemical symbol https://brainly.com/question/10892900
Learn more about an alkali metal https://brainly.com/question/6324347

Answer details

Grade: 9

Subject: chemistry

Chapter: Periodic Table of the Elements

Keywords: A transition element, element in period 3, element in group 2a, element, the chemical symbol