Chemistry, asked by deevansh2238, 11 months ago

The atomic number of an element is 20. In modern periodic table, this element is placed
(a) 2nd period
(b) 4th period
(c) 3rd period
(d) 1st period

Answers

Answered by chakrabortyashmita

3

Answer:

Explanation:

The answer of the following is given in the picture

Attachments:

Answered by sadiamemon364

1

Answer:

this element is placed in 2nd period

Previous Question

Next Question

Similar questions

Math, 5 months ago

convert each of the following into a decimal 9/16...

Hindi, 5 months ago

vigyan Ka mahatvaessay on vigyan ...

Math, 5 months ago

3.MATHS: (TWO QUESTIONS BASED ON GRAPH) Q1. Write the coordinates of each of the vertices of each polygon in the figure given below. Q2.Draw the line graph for the following data. Timel in Hours) 5 10 15 20 200 400 600 800 Distance travelled by bike (in km)...

Chemistry, 11 months ago

The electronic configuration of the atom of an element X is 2, 8, 4. In modern periodic table, the element X is places in (a) 2nd group (b) 4th group (c) 14th group (d) 8th group...

Chemistry, 11 months ago

(a) Explain why, the first period of the modern periodic table has only two elements whereas second period has eight elements (b) Why do elements in the same group show similar properties but the elements in different groups show different properties? (c) For each of the following triads, name the element with the characteristics specified below Elements Least atomic radius Chemically least...

English, 1 year ago

summary of Anthariksham 9000kmph...

Accountancy, 1 year ago

what is the answer of this question and how?

Chemistry, 1 year ago

what is the ore of the iron is called...