Physics, 19.02.2020 23:36 plb2007

((PLEASE HELP ASAP i have no idea what i'm doing i need someone who does. Will give BRAINLIEST if correct. and p l e a s e do n o t leave out a n y information.))

Use the Periodic Table of Elements to obtain information about each element in the Mystery Clues list. Record your information on the Mystery Clues Data table.

Mystery Clues:

A. This element has 12 electrons when the atom is electrically neutral.

B. This element is is an alkaline-earth metals group. It has 20 protons.

C. This element has 7 electrons when the atom is electrically neutral.

D. An isotope of this element has 8 neutrons and a mass of 14.

E. This element has a chemical signal Hg.

F. This element belongs to the same group as aluminum (Al) and has an atomic mass of 69.72.

There is a Mystery Clues Data table that you need to fill out, and for each element there is an atomic number, atomic mass, number of protons, total number of electrons when electrically neutral, and the element's symbol.

(I wasn't able to take a picture of the table so it's just a description, the best I can do.)

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 13:00

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

Answers: 1

Answer

Physics, 22.06.2019 15:00

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Answers: 2

Answer

Physics, 22.06.2019 16:40

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Answers: 3

Answer

Physics, 22.06.2019 17:40

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.

Answers: 2

Answer

You know the right answer?

((PLEASE HELP ASAP i have no idea what i'm doing i need someone who does. Will give BRAINLIEST if co...

Questions