Please answer it as soon as possible. Grade: 9th Subject: Science

1aNeon

b. positive charge.

c. As atomic number is equal to no. of protons and no. of electron and atomic number 10 element is Neon.

Positive charge as it have lost one of it's electron.

Atomic number = no. of protons = no. of electron and since electron can be shared loose or gain to develop charge it have loose on electron.

2a. 4 protons

b. 2 electrons

c. In question 2(a) the atomic number of Be is 4 so it would have four protons.

And as for question (b) it is said it have 2 charge which means positive charge would mean that it have lost 2 electrons and is left with 2 electrons which fulfill it's duplet configuration.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101