The following table shows the position of five elements

Asked by admin @ 11/08/2021 in Science viewed by 301 People

The following table shows the position of five clements A, B, C, D and E inthe modern periodic table.123 to 12 1314 | 15161718Group-Period2ABС3DEAnswer the following giving reasons(1) Which element is a metal with valency two?(11) Which element is least reactive?(ii) Out of D and E which element has a smaller atomic radius?

Answered by admin @ 11/08/2021

Answer:

(1) Beryllium (atomic number 4)

(2) The group 18 is the least reactive

(3) E has a smaller atomic radius

The following table shows the position of six elements

Asked by admin @ 17/08/2021 in Science viewed by 262 persons

The following table shows the position of six elements A, B, C, D, E and F in the periodic table. Groups 1 2 3 to 12 13 14 15 16 …

Which shows the following expression using positive exponents?

Asked by maham237 @ 18/12/2020 in Mathematics viewed by 370 persons

a^3 b^-2/ ab^-4

Position of elements in the modern periodic table

Asked by admin @ 29/08/2021 in Chemistry viewed by 319 persons

State the modern periodic table and explain position of elements in the modern periodic table

Arrange the following elements in order of decreasing atomic radius

Asked by admin @ 03/12/2021 in Chemistry viewed by 372 persons

Arrange the following elements in order of decreasing atomic radius: Ba, Sn, S, Pb, and As. Rank elements from largest to smallest.

The table shows how a company employees commute to work

Asked by admin @ 26/11/2021 in Mathematics viewed by 323 persons

The table shows the transportation method of employees at a certain company. What percent of the employees walk to work? Car: 758 Bus: 530 Walk: 7 Other: 105 Somebody help, …

Which of the following elements has the smallest atomic radius

Asked by admin @ 02/10/2021 in Chemistry viewed by 323 persons

Which of the following elements has the smallest atomic radius? (2 points) Carbon Nitrogen Oxygen Fluorine

Which of the following is not an element of negligence

Asked by admin @ 02/10/2021 in Business viewed by 296 persons

Which of the following is NOT an element of negligence? a. Intent b. Duty c. Breach d. Causation e. Damages

Which of the following is an example of positive punishment

Asked by admin @ 02/10/2021 in Social Studies viewed by 319 persons

Which of the following is an example of positive punishment? Multiple Choice you fight with your significant other and walk away grounding a child for misbehaving and not letting him/her …

Which of the following is an example of positive feedback

Asked by admin @ 02/10/2021 in Biology viewed by 342 persons

Which of the following is an example of positive feedback? A) a person begins to sweat under the hot sun and moves into the shade B) a light rail system …

Which table shows a proportional relationship between x and y

Asked by admin @ 30/09/2021 in Mathematics viewed by 311 persons

(1.) Which Table shows a proportional relationship between x and y? A. First picture B. Second Picture C. Third Picture D. Fourth Picture (2.) Is the Relationship shown in the …

Which of the following is an example of positive reinforcement

Asked by admin @ 30/09/2021 in Social Studies viewed by 304 persons

Which of the following is an example of positive reinforcement? An angler catches a record fish at night and decides to stay out late every day. A truck driver gets …